d: Merge upstream dmd cb49e99f8, druntime 55528bd1, phobos 1a3e80ec2.

D front-end changes:

    - Import dmd v2.099.0-beta.1.
    - It's now an error to use `alias this' for partial assignment.
    - The `delete' keyword has been removed from the language.
    - Using `this' and `super' as types has been removed from the
      language, the parser no longer specially handles this wrong code
      with an informative error.

D Runtime changes:

    - Import druntime v2.099.0-beta.1.

Phobos changes:

    - Import phobos v2.099.0-beta.1.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd cb49e99f8.
	* dmd/VERSION: Update version to v2.099.0-beta.1.
	* decl.cc (layout_class_initializer): Update call to NewExp::create.
	* expr.cc (ExprVisitor::visit (DeleteExp *)): Remove handling of
	deleting arrays and pointers.
	(ExprVisitor::visit (DotVarExp *)): Convert complex types to the
	front-end library type representing them.
	(ExprVisitor::visit (StringExp *)): Use getCodeUnit instead of charAt
	to get the value of each index in a string expression.
	* runtime.def (DELMEMORY): Remove.
	(DELARRAYT): Remove.
	* types.cc (TypeVisitor::visit (TypeEnum *)): Handle anonymous enums.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime 55528bd1.
	* src/MERGE: Merge upstream phobos 1a3e80ec2.
	* testsuite/libphobos.hash/test_hash.d: Update.
	* testsuite/libphobos.betterc/test19933.d: New test.

49 files changed, 476 insertions, 205 deletions

diff --git a/gcc/testsuite/gdc.test/compilable/99bottles.d b/gcc/testsuite/gdc.test/compilable/99bottles.d
index 5341a49f766..ac416eb0fcb 100644
--- a/gcc/testsuite/gdc.test/compilable/99bottles.d
+++ b/gcc/testsuite/gdc.test/compilable/99bottles.d
@@ -3,7 +3,7 @@
 //    http://www.99-bottles-of-beer.net/language-d-1212.html
 
 // Generates the "99 bottles of beer" song at compile time,
-// using the template metaprograming facilities of D. 
+// using the template metaprograming facilities of D.
 // No executable is generated. No libraries are used.
 // Illustrates template default values, template string value parameters,
 // compile-time concatenation of constant strings, static if.
@@ -24,13 +24,13 @@ template itoa(ulong n)
 
 template showHowMany(int n, string where, bool needcapital = false)
 {
-  static if ( n > 1 ) 
+  static if ( n > 1 )
       const string showHowMany = itoa!(n) ~ " bottles of beer" ~ where ~ "\n";
   else static if ( n == 1 )
       const string showHowMany = "1 bottle of beer" ~ where ~ "\n";
   else static if ( needcapital )
       const string showHowMany = "No more bottles of beer" ~ where ~ "\n";
-  else 
+  else
       const string showHowMany = "no more bottles of beer" ~ where ~ "\n";
 }
 
@@ -39,514 +39,514 @@ template beer(int maxbeers, int n = maxbeers)
   static if ( n > 0 )
     const string beer = showHowMany!(n, " on the wall,", true)
         ~ showHowMany!(n, ".")
-        ~ "Take one down and pass it around, " ~ "\n" 
-        ~ showHowMany!( n - 1 , " on the wall.") 
+        ~ "Take one down and pass it around," ~ "\n"
+        ~ showHowMany!( n - 1 , " on the wall.")
         ~ "\n" ~ beer!(maxbeers, n - 1); // recurse for subsequent verses.
   else
     const string beer = showHowMany!(n, " on the wall,", true)
         ~ showHowMany!(n, ".")
-        ~ "Go to the store and buy some more, " ~ "\n"
+        ~ "Go to the store and buy some more," ~ "\n"
         ~ showHowMany!( maxbeers, " on the wall.");
 }
 
 enum expected = `99 bottles of beer on the wall,
 99 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 98 bottles of beer on the wall.
 
 98 bottles of beer on the wall,
 98 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 97 bottles of beer on the wall.
 
 97 bottles of beer on the wall,
 97 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 96 bottles of beer on the wall.
 
 96 bottles of beer on the wall,
 96 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 95 bottles of beer on the wall.
 
 95 bottles of beer on the wall,
 95 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 94 bottles of beer on the wall.
 
 94 bottles of beer on the wall,
 94 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 93 bottles of beer on the wall.
 
 93 bottles of beer on the wall,
 93 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 92 bottles of beer on the wall.
 
 92 bottles of beer on the wall,
 92 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 91 bottles of beer on the wall.
 
 91 bottles of beer on the wall,
 91 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 90 bottles of beer on the wall.
 
 90 bottles of beer on the wall,
 90 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 89 bottles of beer on the wall.
 
 89 bottles of beer on the wall,
 89 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 88 bottles of beer on the wall.
 
 88 bottles of beer on the wall,
 88 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 87 bottles of beer on the wall.
 
 87 bottles of beer on the wall,
 87 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 86 bottles of beer on the wall.
 
 86 bottles of beer on the wall,
 86 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 85 bottles of beer on the wall.
 
 85 bottles of beer on the wall,
 85 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 84 bottles of beer on the wall.
 
 84 bottles of beer on the wall,
 84 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 83 bottles of beer on the wall.
 
 83 bottles of beer on the wall,
 83 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 82 bottles of beer on the wall.
 
 82 bottles of beer on the wall,
 82 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 81 bottles of beer on the wall.
 
 81 bottles of beer on the wall,
 81 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 80 bottles of beer on the wall.
 
 80 bottles of beer on the wall,
 80 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 79 bottles of beer on the wall.
 
 79 bottles of beer on the wall,
 79 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 78 bottles of beer on the wall.
 
 78 bottles of beer on the wall,
 78 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 77 bottles of beer on the wall.
 
 77 bottles of beer on the wall,
 77 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 76 bottles of beer on the wall.
 
 76 bottles of beer on the wall,
 76 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 75 bottles of beer on the wall.
 
 75 bottles of beer on the wall,
 75 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 74 bottles of beer on the wall.
 
 74 bottles of beer on the wall,
 74 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 73 bottles of beer on the wall.
 
 73 bottles of beer on the wall,
 73 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 72 bottles of beer on the wall.
 
 72 bottles of beer on the wall,
 72 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 71 bottles of beer on the wall.
 
 71 bottles of beer on the wall,
 71 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 70 bottles of beer on the wall.
 
 70 bottles of beer on the wall,
 70 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 69 bottles of beer on the wall.
 
 69 bottles of beer on the wall,
 69 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 68 bottles of beer on the wall.
 
 68 bottles of beer on the wall,
 68 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 67 bottles of beer on the wall.
 
 67 bottles of beer on the wall,
 67 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 66 bottles of beer on the wall.
 
 66 bottles of beer on the wall,
 66 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 65 bottles of beer on the wall.
 
 65 bottles of beer on the wall,
 65 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 64 bottles of beer on the wall.
 
 64 bottles of beer on the wall,
 64 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 63 bottles of beer on the wall.
 
 63 bottles of beer on the wall,
 63 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 62 bottles of beer on the wall.
 
 62 bottles of beer on the wall,
 62 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 61 bottles of beer on the wall.
 
 61 bottles of beer on the wall,
 61 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 60 bottles of beer on the wall.
 
 60 bottles of beer on the wall,
 60 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 59 bottles of beer on the wall.
 
 59 bottles of beer on the wall,
 59 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 58 bottles of beer on the wall.
 
 58 bottles of beer on the wall,
 58 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 57 bottles of beer on the wall.
 
 57 bottles of beer on the wall,
 57 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 56 bottles of beer on the wall.
 
 56 bottles of beer on the wall,
 56 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 55 bottles of beer on the wall.
 
 55 bottles of beer on the wall,
 55 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 54 bottles of beer on the wall.
 
 54 bottles of beer on the wall,
 54 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 53 bottles of beer on the wall.
 
 53 bottles of beer on the wall,
 53 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 52 bottles of beer on the wall.
 
 52 bottles of beer on the wall,
 52 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 51 bottles of beer on the wall.
 
 51 bottles of beer on the wall,
 51 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 50 bottles of beer on the wall.
 
 50 bottles of beer on the wall,
 50 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 49 bottles of beer on the wall.
 
 49 bottles of beer on the wall,
 49 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 48 bottles of beer on the wall.
 
 48 bottles of beer on the wall,
 48 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 47 bottles of beer on the wall.
 
 47 bottles of beer on the wall,
 47 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 46 bottles of beer on the wall.
 
 46 bottles of beer on the wall,
 46 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 45 bottles of beer on the wall.
 
 45 bottles of beer on the wall,
 45 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 44 bottles of beer on the wall.
 
 44 bottles of beer on the wall,
 44 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 43 bottles of beer on the wall.
 
 43 bottles of beer on the wall,
 43 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 42 bottles of beer on the wall.
 
 42 bottles of beer on the wall,
 42 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 41 bottles of beer on the wall.
 
 41 bottles of beer on the wall,
 41 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 40 bottles of beer on the wall.
 
 40 bottles of beer on the wall,
 40 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 39 bottles of beer on the wall.
 
 39 bottles of beer on the wall,
 39 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 38 bottles of beer on the wall.
 
 38 bottles of beer on the wall,
 38 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 37 bottles of beer on the wall.
 
 37 bottles of beer on the wall,
 37 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 36 bottles of beer on the wall.
 
 36 bottles of beer on the wall,
 36 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 35 bottles of beer on the wall.
 
 35 bottles of beer on the wall,
 35 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 34 bottles of beer on the wall.
 
 34 bottles of beer on the wall,
 34 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 33 bottles of beer on the wall.
 
 33 bottles of beer on the wall,
 33 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 32 bottles of beer on the wall.
 
 32 bottles of beer on the wall,
 32 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 31 bottles of beer on the wall.
 
 31 bottles of beer on the wall,
 31 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 30 bottles of beer on the wall.
 
 30 bottles of beer on the wall,
 30 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 29 bottles of beer on the wall.
 
 29 bottles of beer on the wall,
 29 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 28 bottles of beer on the wall.
 
 28 bottles of beer on the wall,
 28 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 27 bottles of beer on the wall.
 
 27 bottles of beer on the wall,
 27 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 26 bottles of beer on the wall.
 
 26 bottles of beer on the wall,
 26 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 25 bottles of beer on the wall.
 
 25 bottles of beer on the wall,
 25 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 24 bottles of beer on the wall.
 
 24 bottles of beer on the wall,
 24 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 23 bottles of beer on the wall.
 
 23 bottles of beer on the wall,
 23 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 22 bottles of beer on the wall.
 
 22 bottles of beer on the wall,
 22 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 21 bottles of beer on the wall.
 
 21 bottles of beer on the wall,
 21 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 20 bottles of beer on the wall.
 
 20 bottles of beer on the wall,
 20 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 19 bottles of beer on the wall.
 
 19 bottles of beer on the wall,
 19 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 18 bottles of beer on the wall.
 
 18 bottles of beer on the wall,
 18 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 17 bottles of beer on the wall.
 
 17 bottles of beer on the wall,
 17 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 16 bottles of beer on the wall.
 
 16 bottles of beer on the wall,
 16 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 15 bottles of beer on the wall.
 
 15 bottles of beer on the wall,
 15 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 14 bottles of beer on the wall.
 
 14 bottles of beer on the wall,
 14 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 13 bottles of beer on the wall.
 
 13 bottles of beer on the wall,
 13 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 12 bottles of beer on the wall.
 
 12 bottles of beer on the wall,
 12 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 11 bottles of beer on the wall.
 
 11 bottles of beer on the wall,
 11 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 10 bottles of beer on the wall.
 
 10 bottles of beer on the wall,
 10 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 9 bottles of beer on the wall.
 
 9 bottles of beer on the wall,
 9 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 8 bottles of beer on the wall.
 
 8 bottles of beer on the wall,
 8 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 7 bottles of beer on the wall.
 
 7 bottles of beer on the wall,
 7 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 6 bottles of beer on the wall.
 
 6 bottles of beer on the wall,
 6 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 5 bottles of beer on the wall.
 
 5 bottles of beer on the wall,
 5 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 4 bottles of beer on the wall.
 
 4 bottles of beer on the wall,
 4 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 3 bottles of beer on the wall.
 
 3 bottles of beer on the wall,
 3 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 2 bottles of beer on the wall.
 
 2 bottles of beer on the wall,
 2 bottles of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 1 bottle of beer on the wall.
 
 1 bottle of beer on the wall,
 1 bottle of beer.
-Take one down and pass it around, 
+Take one down and pass it around,
 no more bottles of beer on the wall.
 
 No more bottles of beer on the wall,
 no more bottles of beer.
-Go to the store and buy some more, 
+Go to the store and buy some more,
 99 bottles of beer on the wall.
 `;
 
diff --git a/gcc/testsuite/gdc.test/compilable/b18242.d b/gcc/testsuite/gdc.test/compilable/b18242.d
index 5dcaeca73b4..3bc699aa7da 100644
--- a/gcc/testsuite/gdc.test/compilable/b18242.d
+++ b/gcc/testsuite/gdc.test/compilable/b18242.d
@@ -5,14 +5,14 @@ module object;
 class Object { }
 
 class TypeInfo { }
-class TypeInfo_Class : TypeInfo 
-{ 
+class TypeInfo_Class : TypeInfo
+{
     version(D_LP64) { ubyte[136] _x; } else { ubyte[68] _x; }
 }
 
 class Throwable { }
 
-int _d_run_main() 
+int _d_run_main()
 {
     try { } catch(Throwable e) { return 1; }
     return 0;
diff --git a/gcc/testsuite/gdc.test/compilable/b19294.d b/gcc/testsuite/gdc.test/compilable/b19294.d
index 063a9df152a..ed1a71747e4 100644
--- a/gcc/testsuite/gdc.test/compilable/b19294.d
+++ b/gcc/testsuite/gdc.test/compilable/b19294.d
@@ -51,19 +51,19 @@ void test()
     MT s = MyStruct!int(1);
     MT[] arr = [s, 2 * s, 3 * s, 4 * s, 5 * s, 6 * s];
     MT[] result = new MT[arr.length];
-    
+
     result[] = arr[] + s;
     result[] = s + arr[];
-    
+
     result[] = arr[] - s;
     result[] = s - arr[];
-    
+
     result[] = arr[] * s;
     result[] = s * arr[];
-    
+
     result[] = arr[] / s;
     result[] = s / arr[];
-    
+
     result[] = arr[] ^^ s;
     result[] = s ^^ arr[];
 }
diff --git a/gcc/testsuite/gdc.test/compilable/b20938.d b/gcc/testsuite/gdc.test/compilable/b20938.d
index efcf4aab06f..ba3565ae8f9 100644
--- a/gcc/testsuite/gdc.test/compilable/b20938.d
+++ b/gcc/testsuite/gdc.test/compilable/b20938.d
@@ -12,11 +12,11 @@ void fun() {
     immutable S _is;
     Object o;
     immutable Object io;
-    
+
     auto a = [pi, ipi];
-    auto b = [ai, iai];    
+    auto b = [ai, iai];
     auto c = [s, _is];
     auto d = [o, io];
-    
+
     auto e = [A.a, B.b];
 }
diff --git a/gcc/testsuite/gdc.test/compilable/b21285.d b/gcc/testsuite/gdc.test/compilable/b21285.d
index 11eea74b669..482faa77f0d 100644
--- a/gcc/testsuite/gdc.test/compilable/b21285.d
+++ b/gcc/testsuite/gdc.test/compilable/b21285.d
@@ -1,27 +1,27 @@
 // REQUIRED_ARGS: -unittest
-// Issue 21285 - Delegate covariance broken between 2.092 and 2.094 (git master). 
+// Issue 21285 - Delegate covariance broken between 2.092 and 2.094 (git master).
 unittest
 {
     string path;
     int bank;
     static string path2;
     static int bank2;
-    
+
     // delegates
     auto a = [
         (string arg) { path = arg; },
         (string arg) { bank = 1; throw new Exception(""); }
     ];
-    
+
     // functions
     auto ab = [
         (string arg) { path2 = arg; },
         (string arg) { bank2 = 1; throw new Exception(""); }
     ];
-    
+
     alias dg = void delegate(string) pure @safe;
     alias fn = void function(string) @safe;
-    
+
     static assert(is(typeof(a[0]) == dg));
     static assert(is(typeof(ab[0]) == fn));
 }
diff --git a/gcc/testsuite/gdc.test/compilable/commontype.d b/gcc/testsuite/gdc.test/compilable/commontype.d
index 076e29baece..a740994d7b5 100644
--- a/gcc/testsuite/gdc.test/compilable/commontype.d
+++ b/gcc/testsuite/gdc.test/compilable/commontype.d
@@ -196,7 +196,8 @@ static assert(is( X!( C***, B*** ) == const(B**)* )); // `B***`
 
 static assert(is( X!( C*, I* ) == I* ));
 static assert(is( X!( I*, C* ) == I* ));
-static assert(Error!( C**, I** ));
+//static assert(Error!( C**, I** ));
+static assert(is( X!( C**, I** ) == const(I*)* ));
 
 static assert(Error!( C*, D* )); // should work
 
@@ -303,13 +304,15 @@ static assert(is( X!(C[4], B[4]) ));
 static assert(Error!( C[4], I[4] ));
 static assert(Error!( C[4], D[4] ));
 static assert(is( X!( C[4], const(B)[4] ) == const(B)[4] ));
-static assert(Error!( C[4], const(I)[4] ));
+//static assert(Error!( C[4], const(I)[4] ));
+static assert(is( X!( C[4], const(I)[4] ) == const(I)[] ));
 static assert(Error!( C[4], const(D)[4] ));
 static assert(Error!( C*[4], B*[4] ));
 static assert(Error!( C*[4], I*[4] ));
 static assert(Error!( C*[4], D*[4] ));
 static assert(is( X!( C*[4], const(B*)[4] ) == const(B*)[] )); // !?
-static assert(Error!( C*[4], const(I*)[4] ));
+//static assert(Error!( C*[4], const(I*)[4] ));
+static assert(is( X!( C*[4], const(I*)[4] ) == const(I*)[] ));
 static assert(Error!( C*[4], const(D*)[4] ));
 static assert(Error!( C*[4], B**[4] ));
 static assert(Error!( C*[4], const(B*)*[4] ));
diff --git a/gcc/testsuite/gdc.test/compilable/ddoc10.d b/gcc/testsuite/gdc.test/compilable/ddoc10.d
index 6a7a4812c60..2f614095a8e 100644
--- a/gcc/testsuite/gdc.test/compilable/ddoc10.d
+++ b/gcc/testsuite/gdc.test/compilable/ddoc10.d
@@ -171,7 +171,7 @@ struct T
     /****
      */
     this(A...)(A args) { }
-    
+
     ///
     this(int){}
 }
diff --git a/gcc/testsuite/gdc.test/compilable/ddoc11.d b/gcc/testsuite/gdc.test/compilable/ddoc11.d
index 3fcf2ca00da..0082455d0ae 100644
--- a/gcc/testsuite/gdc.test/compilable/ddoc11.d
+++ b/gcc/testsuite/gdc.test/compilable/ddoc11.d
@@ -49,7 +49,7 @@ struct lldiv_t { long quot,rem; }
 
 
 
-    void *calloc(size_t, size_t);	/// 
+    void *calloc(size_t, size_t);	///
     void *malloc(size_t);	/// dittx
 
 /**
diff --git a/gcc/testsuite/gdc.test/compilable/ddoc14.d b/gcc/testsuite/gdc.test/compilable/ddoc14.d
index a8b6d4d9d4c..fae99d401f1 100644
--- a/gcc/testsuite/gdc.test/compilable/ddoc14.d
+++ b/gcc/testsuite/gdc.test/compilable/ddoc14.d
@@ -77,7 +77,7 @@ interface Interface {
     V mColon(lazy P p) ; /// 10
 }
 +/
-    
+
 public P variable;  /// 0
 V mNone(lazy P p) {}  /// 1
 pure nothrow V mPrefix(lazy P p) {}   /// 2
diff --git a/gcc/testsuite/gdc.test/compilable/ddoc3.d b/gcc/testsuite/gdc.test/compilable/ddoc3.d
index 1bcae411232..3b47497a1a7 100644
--- a/gcc/testsuite/gdc.test/compilable/ddoc3.d
+++ b/gcc/testsuite/gdc.test/compilable/ddoc3.d
@@ -42,7 +42,7 @@
  *	$(TROW 4, 5, 6)
  *	)
  *
- * $(D_CODE 
+ * $(D_CODE
       $(B pragma)( $(I name) );
       $(B pragma)( $(I name) , $(I option) [ $(I option) ] );
       $(U $(LPAREN))
diff --git a/gcc/testsuite/gdc.test/compilable/ddoc5.d b/gcc/testsuite/gdc.test/compilable/ddoc5.d
index 4ddc123b064..5a964f3dc65 100644
--- a/gcc/testsuite/gdc.test/compilable/ddoc5.d
+++ b/gcc/testsuite/gdc.test/compilable/ddoc5.d
@@ -15,10 +15,10 @@ class TestMembers(TemplateArg)
   public:
     /**
 
-       a static method 
+       a static method
 
        Params: idx = index
-   
+
     */
     static void PublicStaticMethod(int  idx)
     {
diff --git a/gcc/testsuite/gdc.test/compilable/ddoc5446.d b/gcc/testsuite/gdc.test/compilable/ddoc5446.d
index 0596088b2e6..29cb8c9cefd 100644
--- a/gcc/testsuite/gdc.test/compilable/ddoc5446.d
+++ b/gcc/testsuite/gdc.test/compilable/ddoc5446.d
@@ -30,41 +30,41 @@ struct Bar
 {
     /** */
     alias A_Foo Bar_A_Foo;
-    
+
     /** */
     alias A_Foo_Alias Bar_A_Foo_Alias;
-    
+
     /** */
     alias A_Int Bar_A_Int;
-    
+
     /** */
     alias This_Foo Bar_This_Foo;
-    
+
     /** */
     alias This_Foo_Alias Bar_This_Foo_Alias;
-    
+
     /** */
     alias This_Int Bar_This_Int;
-    
+
     /** */
     alias Nested Nested_Alias;
-    
+
     /** */
     alias .Nested Fake_Nested;
-    
+
     /** */
     struct Nested
     {
         /** */
         alias Bar Bar_Nested_Bar_Alias;
-        
+
         /** */
         alias .Bar Bar_Alias;
-        
+
         /** */
         struct Bar
         {
-            
+
         }
     }
 }
diff --git a/gcc/testsuite/gdc.test/compilable/ddoc9155.d b/gcc/testsuite/gdc.test/compilable/ddoc9155.d
index 9f5a59a434c..e03d422041b 100644
--- a/gcc/testsuite/gdc.test/compilable/ddoc9155.d
+++ b/gcc/testsuite/gdc.test/compilable/ddoc9155.d
@@ -12,12 +12,12 @@ module ddoc9155;
  +  ---
  +  import std.stdio;   //&
  +  writeln("Hello world!");
- +  if (test) {  
+ +  if (test) {
  +    writefln("D programming language");
  +  }
  +
  +      algorithm;
- +  
+ +
  +  xxx;    //comment
  +      yyy;
  +  /* test
@@ -28,7 +28,7 @@ module ddoc9155;
  +File f = File("./text.txt", "r");
  +uint line = 0;
  + // The ElementType of data is not aggregation type
- +foreach (encoded; Base64.encoder(data)) 
+ +foreach (encoded; Base64.encoder(data))
  +  ---
  +/
 
@@ -45,12 +45,12 @@ module ddoc9155;
  *  ---
  *  import std.stdio;   //&
  *  writeln("Hello world!");
- *  if (test) {  
+ *  if (test) {
  *    writefln("D programming language");
  *  }
  *
  *      algorithm;
- *  
+ *
  *  xxx;    //comment
  *      yyy;
  *  /+ test
diff --git a/gcc/testsuite/gdc.test/compilable/debugInference.d b/gcc/testsuite/gdc.test/compilable/debugInference.d
index 1d4f157d788..947d820fcac 100644
--- a/gcc/testsuite/gdc.test/compilable/debugInference.d
+++ b/gcc/testsuite/gdc.test/compilable/debugInference.d
@@ -1,9 +1,5 @@
 /*
 REQUIRED_ARGS: -debug
-TEST_OUTPUT:
----
-compilable/debugInference.d(35): Deprecation: The `delete` keyword has been deprecated.  Use `object.destroy()` (and `core.memory.GC.free()` if applicable) instead.
----
 https://issues.dlang.org/show_bug.cgi?id=20507
 */
 
@@ -32,7 +28,7 @@ void bar()()
         auto f2Ptr = &f2;
 
         S s;
-        delete s;
+        destroy(s);
 
         int* ptr = cast(int*) 0;
         int[] slice = ptr[0 .. 4];
diff --git a/gcc/testsuite/gdc.test/compilable/defa.d b/gcc/testsuite/gdc.test/compilable/defa.d
index a9222074ce4..5b4e5897c1f 100644
--- a/gcc/testsuite/gdc.test/compilable/defa.d
+++ b/gcc/testsuite/gdc.test/compilable/defa.d
@@ -3,7 +3,7 @@
 module defa;
 
 private import imports.defaa;
-	
+
 public abstract class A
 {
 	Display d;
diff --git a/gcc/testsuite/gdc.test/compilable/dlangui_crash.d b/gcc/testsuite/gdc.test/compilable/dlangui_crash.d
new file mode 100644
index 00000000000..36617f544c4
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/dlangui_crash.d
@@ -0,0 +1,34 @@
+// https://issues.dlang.org/show_bug.cgi?id=22365
+
+class DrawableCache
+{
+    Ref _nullDrawable;
+
+    this()
+    {
+        debug Log;
+    }
+}
+
+class DrawableCacheEmpty
+{
+    Ref _nullDrawable;
+
+    this() {}
+}
+
+struct Ref
+{
+
+    ~this()
+    {
+    }
+}
+
+void foo()
+{
+    try
+        debug Log;
+    catch (Exception)
+        assert(false);
+}
diff --git a/gcc/testsuite/gdc.test/compilable/enumbasearithmetic.d b/gcc/testsuite/gdc.test/compilable/enumbasearithmetic.d
new file mode 100644
index 00000000000..4dbc56da476
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/enumbasearithmetic.d
@@ -0,0 +1,20 @@
+//https://issues.dlang.org/show_bug.cgi?id=20777
+struct FooInt
+{
+    int i;
+    auto opBinary(string op : "+")(int j)
+    {
+        return typeof(this)(i + j);
+    }
+
+    static @property FooInt max()
+    {
+        return typeof(this)(int.max);
+    }
+}
+
+enum foolist
+{
+    hi  = FooInt(0),
+    bye
+}
diff --git a/gcc/testsuite/gdc.test/compilable/header18364.d b/gcc/testsuite/gdc.test/compilable/header18364.d
index c7e1e67c7ae..080a0960a14 100644
--- a/gcc/testsuite/gdc.test/compilable/header18364.d
+++ b/gcc/testsuite/gdc.test/compilable/header18364.d
@@ -8,7 +8,7 @@ TEST_OUTPUT:
 === ${RESULTS_DIR}/compilable/header18364.di
 // D import file generated from 'compilable/header18364.d'
 module foo.bar.ba;
-nothrow pure @nogc @safe package(foo) 
+nothrow pure @nogc @safe package(foo)
 {
 	void foo();
 	nothrow pure @nogc @safe package(foo.bar) void foo2();
diff --git a/gcc/testsuite/gdc.test/compilable/imports/b33a.d b/gcc/testsuite/gdc.test/compilable/imports/b33a.d
index 5d52c66ceec..bd8fd0c2664 100644
--- a/gcc/testsuite/gdc.test/compilable/imports/b33a.d
+++ b/gcc/testsuite/gdc.test/compilable/imports/b33a.d
@@ -6,10 +6,10 @@ struct IsEqual( T )
     {
 	return p1 == p2;
     }
-}    
+}
 
 template find_( Elem, Pred = IsEqual!(Elem) )
-{    
+{
     size_t fn( char[] buf, Pred pred = Pred.init )
     {
         return 3;
diff --git a/gcc/testsuite/gdc.test/compilable/imports/imp22734.c b/gcc/testsuite/gdc.test/compilable/imports/imp22734.c
new file mode 100644
index 00000000000..9df542b5e0f
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/imports/imp22734.c
@@ -0,0 +1,3 @@
+typedef enum { C } E;
+
+int a = C;
diff --git a/gcc/testsuite/gdc.test/compilable/imports/test22714a.d b/gcc/testsuite/gdc.test/compilable/imports/test22714a.d
new file mode 100644
index 00000000000..7b77272a51b
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/imports/test22714a.d
@@ -0,0 +1,3 @@
+module imports.test22714a;
+import imports.test22714b;
+class Statement {}
diff --git a/gcc/testsuite/gdc.test/compilable/imports/test22714b.d b/gcc/testsuite/gdc.test/compilable/imports/test22714b.d
new file mode 100644
index 00000000000..68bd95b1674
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/imports/test22714b.d
@@ -0,0 +1,12 @@
+module imports.test22714b;
+import imports.test22714a;
+struct Array(T)
+{
+    T[] data;
+    T[1] smallarray;
+}
+struct Ensure
+{
+    Statement ensure;
+    Array!Ensure* arraySyntaxCopy;
+}
diff --git a/gcc/testsuite/gdc.test/compilable/issue16472.d b/gcc/testsuite/gdc.test/compilable/issue16472.d
new file mode 100644
index 00000000000..a4353cee936
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/issue16472.d
@@ -0,0 +1,42 @@
+// https://issues.dlang.org/show_bug.cgi?id=16472
+enum e() = 0;
+
+template t(alias v = e!()) {} //Error
+alias dummy = t!(e!());
+
+template E(F){
+    enum E {
+        K = F(1)
+    }
+}
+
+struct S(F = float, alias e_ = E!double.K) {}
+S!float x; // Error: E!double.K is used as a type
+
+alias T = E!double.K;
+struct S2(F = float, alias e_ = T) {}
+S2!float y; // alias makes it okay...
+
+struct S3(F = float, alias e_ = (E!double.K)) {}
+S3!float z; // just putting parens make it okay as well... wat!?
+
+// for coverage
+
+template G(T)
+{
+    struct G
+    {
+        alias I = int;
+        static int i;
+    }
+}
+
+struct H(F = float, alias e_ = G!double) {}
+H!float a;
+
+struct H1(F = float, alias e_ = G!double.I) {}
+H1!float b;
+
+// https://issues.dlang.org/show_bug.cgi?id=21795
+// struct H2(F = float, alias e_ = G!double.i) {}
+// H2!float c;
diff --git a/gcc/testsuite/gdc.test/compilable/issue21340.d b/gcc/testsuite/gdc.test/compilable/issue21340.d
index 22eda6e3e02..03d37bdc61a 100644
--- a/gcc/testsuite/gdc.test/compilable/issue21340.d
+++ b/gcc/testsuite/gdc.test/compilable/issue21340.d
@@ -5,7 +5,7 @@ version (CppRuntime_Sun)   version = CppMangle_Itanium;
 template ScopeClass(C)
 if (is(C == class) && __traits(getLinkage, C) == "C++")
 {
-    
+
     extern(C++, class)
     extern(C++, __traits(getCppNamespaces,C))
     extern(C++, (ns))
@@ -35,4 +35,4 @@ alias ns = AliasSeq!();
 immutable ns2 = AliasSeq!();
 extern(C++,(ns)) class Bar {}
 extern(C++,) class Baz {}
-extern(C++, (ns2)) class Quux {} 
+extern(C++, (ns2)) class Quux {}
diff --git a/gcc/testsuite/gdc.test/compilable/issue21813b.d b/gcc/testsuite/gdc.test/compilable/issue21813b.d
index ef226971d87..0af986b34a6 100644
--- a/gcc/testsuite/gdc.test/compilable/issue21813b.d
+++ b/gcc/testsuite/gdc.test/compilable/issue21813b.d
@@ -4,7 +4,7 @@ Target.OS defaultTargetOS()
     return Target.OS.linux;
 }
 
-struct Target 
+struct Target
 {
     enum OS { linux }
     OS os = defaultTargetOS();
diff --git a/gcc/testsuite/gdc.test/compilable/minimal.d b/gcc/testsuite/gdc.test/compilable/minimal.d
index 63983288f30..155f0edb618 100644
--- a/gcc/testsuite/gdc.test/compilable/minimal.d
+++ b/gcc/testsuite/gdc.test/compilable/minimal.d
@@ -10,7 +10,7 @@
 
 struct S { }
 
-enum E 
+enum E
 {
     e0 = 0,
     e1 = 1
diff --git a/gcc/testsuite/gdc.test/compilable/test10993.d b/gcc/testsuite/gdc.test/compilable/test10993.d
index a69d0c616cf..9a99187aa06 100644
--- a/gcc/testsuite/gdc.test/compilable/test10993.d
+++ b/gcc/testsuite/gdc.test/compilable/test10993.d
@@ -19,7 +19,7 @@ auto fun()
 {
 	auto x = foo!()(test!(a=>a)());
 //	pragma(msg, "fun: " ~ typeof(x).mangleof);
-	
+
 	return x;
 }
 
diff --git a/gcc/testsuite/gdc.test/compilable/test16107.d b/gcc/testsuite/gdc.test/compilable/test16107.d
index 2267be3339f..3de4dd13c4b 100644
--- a/gcc/testsuite/gdc.test/compilable/test16107.d
+++ b/gcc/testsuite/gdc.test/compilable/test16107.d
@@ -3,12 +3,12 @@
 bool check()
 {
     bool result = false;
-    
+
     result |= false;
     if (result) goto ret;
-    
+
     result |= false;
     if (result) {}
-    
+
     ret: return true;
 }
diff --git a/gcc/testsuite/gdc.test/compilable/test17545.d b/gcc/testsuite/gdc.test/compilable/test17545.d
index bb0c2ae9ace..6285418b806 100644
--- a/gcc/testsuite/gdc.test/compilable/test17545.d
+++ b/gcc/testsuite/gdc.test/compilable/test17545.d
@@ -12,5 +12,5 @@ struct Attrib {}
 
 @Attrib enum TEST = 123;
 
-pragma(msg, __traits(getAttributes, 
+pragma(msg, __traits(getAttributes,
                      __traits(getMember, example, "TEST")));
diff --git a/gcc/testsuite/gdc.test/compilable/test17906.d b/gcc/testsuite/gdc.test/compilable/test17906.d
deleted file mode 100644
index 9c4a547a3e7..00000000000
--- a/gcc/testsuite/gdc.test/compilable/test17906.d
+++ /dev/null
@@ -1,7 +0,0 @@
-// REQUIRED_ARGS: -de
-// https://issues.dlang.org/show_bug.cgi?id=18647
-deprecated void main ()
-{
-    Object o = new Object;
-    delete o;
-}
diff --git a/gcc/testsuite/gdc.test/compilable/test18030.d b/gcc/testsuite/gdc.test/compilable/test18030.d
index f742a401afb..37f8630d2b1 100644
--- a/gcc/testsuite/gdc.test/compilable/test18030.d
+++ b/gcc/testsuite/gdc.test/compilable/test18030.d
@@ -9,6 +9,6 @@ struct S(T)
 class C
 {
 	alias Al = S!C;
-	
+
 	static void func(U)(U var) { }
 }
diff --git a/gcc/testsuite/gdc.test/compilable/test19014.d b/gcc/testsuite/gdc.test/compilable/test19014.d
index 7bbbc941abe..1110b28faeb 100644
--- a/gcc/testsuite/gdc.test/compilable/test19014.d
+++ b/gcc/testsuite/gdc.test/compilable/test19014.d
@@ -8,5 +8,5 @@ void main()
     {
     	static import core.stdc.math;
     }
-    static assert(!__traits(compiles, core.stdc.math.cos(0))); 
+    static assert(!__traits(compiles, core.stdc.math.cos(0)));
 }
diff --git a/gcc/testsuite/gdc.test/compilable/test19315.d b/gcc/testsuite/gdc.test/compilable/test19315.d
index 0c31ab84341..e95ecace07a 100644
--- a/gcc/testsuite/gdc.test/compilable/test19315.d
+++ b/gcc/testsuite/gdc.test/compilable/test19315.d
@@ -1,5 +1,5 @@
 //https://issues.dlang.org/show_bug.cgi?id=19315
-void main() 
+void main()
 {
     #line 100 "file.d"
     enum code = q{
diff --git a/gcc/testsuite/gdc.test/compilable/test19557.d b/gcc/testsuite/gdc.test/compilable/test19557.d
index f107e228a48..b11ae1095cd 100644
--- a/gcc/testsuite/gdc.test/compilable/test19557.d
+++ b/gcc/testsuite/gdc.test/compilable/test19557.d
@@ -1,6 +1,6 @@
 // https://issues.dlang.org/show_bug.cgi?id=19557
 // Error: redundant linkage `extern (C++)`
-    
+
 extern(C++, "ns")
 extern(C++, class)
 struct test {}
diff --git a/gcc/testsuite/gdc.test/compilable/test19609.d b/gcc/testsuite/gdc.test/compilable/test19609.d
index 4367df153b7..df8f891ec8f 100644
--- a/gcc/testsuite/gdc.test/compilable/test19609.d
+++ b/gcc/testsuite/gdc.test/compilable/test19609.d
@@ -3,9 +3,9 @@
 /*
 TEST_OUTPUT:
 ---
-compilable/test19609.d(11): Deprecation: module `imports.test19609a` is deprecated - 
+compilable/test19609.d(11): Deprecation: module `imports.test19609a` is deprecated
 compilable/test19609.d(12): Deprecation: module `imports.test19609b` is deprecated - hello
-compilable/test19609.d(13): Deprecation: module `imports.test19609c` is deprecated -
+compilable/test19609.d(13): Deprecation: module `imports.test19609c` is deprecated
 ---
 */
 import imports.test19609a;
diff --git a/gcc/testsuite/gdc.test/compilable/test21177.d b/gcc/testsuite/gdc.test/compilable/test21177.d
new file mode 100644
index 00000000000..b3b613bc0e9
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test21177.d
@@ -0,0 +1,76 @@
+// https://issues.dlang.org/show_bug.cgi?id=21177
+/*
+DISABLED: win
+TEST_OUTPUT:
+---
+compilable/test21177.d(103): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(150): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(151): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(152): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(153): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(200): Deprecation: more format specifiers than 0 arguments
+compilable/test21177.d(203): Deprecation: format specifier `"%m"` is invalid
+compilable/test21177.d(204): Deprecation: format specifier `"%m"` is invalid
+compilable/test21177.d(205): Deprecation: argument `c` for format specification `"%a"` must be `float*`, not `char*`
+compilable/test21177.d(206): Deprecation: argument `c` for format specification `"%a"` must be `float*`, not `char*`
+---
+*/
+
+import core.stdc.stdio;
+import core.stdc.string;
+import core.stdc.stdlib;
+
+void main()
+{
+    version (CRuntime_Glibc)
+    {
+        #line 100
+        printf("%m this is a string in errno");
+        printf("%s %m", "str".ptr, 2);
+        printf("%a", 2.);
+        printf("%m %m %s");
+        printf("%*m");
+
+        char* a, b;
+        sscanf("salut poilu", "%a %m", a, b);
+        assert(!strcmp(a, b));
+        free(a);
+        free(b);
+
+        char* t, p;
+        sscanf("Tomate Patate", "%ms %as", t, p);
+        free(t);
+        free(p);
+
+        #line 150
+        sscanf("150", "%m");
+        sscanf("151", "%ms");
+        sscanf("152", "%a");
+        sscanf("153", "%as");
+
+        pragma(msg, "compilable/test21177.d(200): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(203): Deprecation: format specifier `\"%m\"` is invalid");
+        pragma(msg, "compilable/test21177.d(204): Deprecation: format specifier `\"%m\"` is invalid");
+        pragma(msg, "compilable/test21177.d(205): Deprecation: argument `c` for format specification `\"%a\"` must be `float*`, not `char*`");
+        pragma(msg, "compilable/test21177.d(206): Deprecation: argument `c` for format specification `\"%a\"` must be `float*`, not `char*`");
+    }
+    else
+    {
+        // fake it
+        pragma(msg, "compilable/test21177.d(103): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(150): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(151): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(152): Deprecation: more format specifiers than 0 arguments");
+        pragma(msg, "compilable/test21177.d(153): Deprecation: more format specifiers than 0 arguments");
+
+        #line 200
+        printf("%m");
+
+        char* c;
+        sscanf("204", "%m", c);
+        sscanf("205", "%ms", c);
+        sscanf("206", "%a", c);
+        sscanf("207", "%as", c);
+
+    }
+}
diff --git a/gcc/testsuite/gdc.test/compilable/test21196.d b/gcc/testsuite/gdc.test/compilable/test21196.d
new file mode 100644
index 00000000000..f8507b434f2
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test21196.d
@@ -0,0 +1,71 @@
+// https://issues.dlang.org/show_bug.cgi?id=21674
+// REQUIRED_ARGS: -de
+
+struct Module
+{
+    CachedString data;
+}
+
+struct CachedString
+{
+    private size_t len;
+
+    this (string data) { this.len = data.length; }
+    public string str () const { return null; }
+    public void str (string value) { this.len = value.length; }
+
+    alias str this;
+}
+
+void test21674a()
+{
+    Module m;
+    m.data = "Hello World";
+}
+
+//////////////////////////////////////////
+
+struct StaticGetter(T)
+{
+    private static T _impl;
+    static ref T value() { return _impl; }
+    alias value this;
+}
+
+struct StaticWrapper
+{
+    StaticGetter!int get;
+    alias get this;
+}
+
+void test21674b()
+{
+    StaticGetter!float sg;
+    sg = 4.2;
+
+    StaticWrapper sw;
+    sw = 42;
+}
+
+//////////////////////////////////////////
+
+EntryType arr;
+auto getPtr() { return &arr; }
+
+struct EntryType
+{
+    bool _state;
+    alias _state this;
+}
+
+struct S19441
+{
+    @property auto ref entry() { return *getPtr(); }
+    alias entry this;
+}
+
+void test19441()
+{
+    S19441 s19441;
+    s19441 = true;
+}
diff --git a/gcc/testsuite/gdc.test/compilable/test22224.d b/gcc/testsuite/gdc.test/compilable/test22224.d
index d16b2f4023d..ef131e998c3 100644
--- a/gcc/testsuite/gdc.test/compilable/test22224.d
+++ b/gcc/testsuite/gdc.test/compilable/test22224.d
@@ -1,4 +1,4 @@
 // REQUIRED_ARGS: -profile -c
 
-import core.stdc.stdarg; 
+import core.stdc.stdarg;
 void error(...) { }
diff --git a/gcc/testsuite/gdc.test/compilable/test22632.d b/gcc/testsuite/gdc.test/compilable/test22632.d
new file mode 100644
index 00000000000..673b51b00f0
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test22632.d
@@ -0,0 +1,4 @@
+// https://issues.dlang.org/show_bug.cgi?id=22632
+
+static assert(["one": 1] != null);
+static assert(null != ["one": 1]);
diff --git a/gcc/testsuite/gdc.test/compilable/test22714.d b/gcc/testsuite/gdc.test/compilable/test22714.d
new file mode 100644
index 00000000000..2973e1d0c27
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test22714.d
@@ -0,0 +1,3 @@
+// EXTRA_FILES: imports/test22714a.d imports/test22714b.d
+// https://issues.dlang.org/show_bug.cgi?id=22714
+import imports.test22714a;
diff --git a/gcc/testsuite/gdc.test/compilable/test22734.d b/gcc/testsuite/gdc.test/compilable/test22734.d
new file mode 100644
index 00000000000..fdd962eedb4
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test22734.d
@@ -0,0 +1,6 @@
+// https://issues.dlang.org/show_bug.cgi?id=22734
+// EXTRA_FILES: imports/imp22734.c
+
+import imports.imp22734;
+
+auto dc = C;
diff --git a/gcc/testsuite/gdc.test/compilable/test4375.d b/gcc/testsuite/gdc.test/compilable/test4375.d
index f5c4e4a9b40..1cc7a3a1c2e 100644
--- a/gcc/testsuite/gdc.test/compilable/test4375.d
+++ b/gcc/testsuite/gdc.test/compilable/test4375.d
@@ -256,7 +256,7 @@ label1:
                         else
                             assert(89);
     else
-        assert(12); 
+        assert(12);
 
 
     with (x)
@@ -299,7 +299,7 @@ label1:
             if (true)
                 assert(110);
             else
-                assert(112);                
+                assert(112);
         finally
             assert(111);
 
@@ -316,7 +316,7 @@ label1:
             int w;
 
         static if (true)
-            int t; 
+            int t;
         else static if (false)
             int u;
         else
diff --git a/gcc/testsuite/gdc.test/compilable/test7172.d b/gcc/testsuite/gdc.test/compilable/test7172.d
index 859f29a13e5..a4cf663066e 100644
--- a/gcc/testsuite/gdc.test/compilable/test7172.d
+++ b/gcc/testsuite/gdc.test/compilable/test7172.d
@@ -7,7 +7,7 @@ void main()
     static assert(!__traits(compiles, { class D : FinalC{} }));
 
     scope class ScopeC{}
-//    static assert(!__traits(compiles, { auto  sc = new ScopeC(); }));
+    static assert(!__traits(compiles, { auto  sc = new ScopeC(); }));
     static assert( __traits(compiles, { scope sc = new ScopeC(); }));
 
     synchronized class SyncC{ void f(){} }
diff --git a/gcc/testsuite/gdc.test/compilable/test8296.d b/gcc/testsuite/gdc.test/compilable/test8296.d
index d27ba15f3e0..cd175b55322 100644
--- a/gcc/testsuite/gdc.test/compilable/test8296.d
+++ b/gcc/testsuite/gdc.test/compilable/test8296.d
@@ -10,7 +10,7 @@ struct bar2
 
 class InnerBar {
   bar2 b;
-  
+
   this()
   {
     b = bar2(0);
@@ -21,7 +21,7 @@ struct bar1
 {
   InnerBar b;
 }
-  
+
 class Foo
 {
   bar1 m_bar1;
diff --git a/gcc/testsuite/gdc.test/compilable/test8513.d b/gcc/testsuite/gdc.test/compilable/test8513.d
index bcdc657be93..4b5d5120502 100644
--- a/gcc/testsuite/gdc.test/compilable/test8513.d
+++ b/gcc/testsuite/gdc.test/compilable/test8513.d
@@ -5,25 +5,25 @@ class Bar
 {
     interface I_Foo { void i_inner(); }
     class C_Foo { void c_inner() { } }
-    
+
     class Impl1 : C_Foo, I_Foo
     {
         override void i_inner() { }
         override void c_inner() { }
     }
-    
+
     class Impl2 : C_Foo, .I_Foo
     {
         override void i_outer() { }
         override void c_inner() { }
     }
-    
+
     class Impl3 : .C_Foo, I_Foo
     {
         override void i_inner() { }
         override void c_outer() { }
     }
-    
+
     class Impl4 : .C_Foo, .I_Foo
     {
         override void i_outer() { }
diff --git a/gcc/testsuite/gdc.test/compilable/testpostblit.d b/gcc/testsuite/gdc.test/compilable/testpostblit.d
index 60a0f4a1ce9..dff4bc59eb9 100644
--- a/gcc/testsuite/gdc.test/compilable/testpostblit.d
+++ b/gcc/testsuite/gdc.test/compilable/testpostblit.d
@@ -14,4 +14,4 @@ struct Test1c
 {
     const Test1b b;
     @disable this(this);
-} 
+}
diff --git a/gcc/testsuite/gdc.test/compilable/testsctreturn.d b/gcc/testsuite/gdc.test/compilable/testsctreturn.d
index 96b82da922f..7826cd4894d 100644
--- a/gcc/testsuite/gdc.test/compilable/testsctreturn.d
+++ b/gcc/testsuite/gdc.test/compilable/testsctreturn.d
@@ -17,3 +17,19 @@ void test()
     size_t* p;
     const ppi = const(PackedPtrImpl!(3))(p);
 }
+
+/************************************************/
+
+// issues.dlang.org/show_bug.cgi?id=22541
+
+struct S
+{
+    int i;
+    int* ptr;
+
+    int* wannabeReturnRef() scope return
+    {
+        return &i;
+    }
+}
+
diff --git a/gcc/testsuite/gdc.test/compilable/typeid_name.d b/gcc/testsuite/gdc.test/compilable/typeid_name.d
index e77d5c80a75..b2292bf60d7 100644
--- a/gcc/testsuite/gdc.test/compilable/typeid_name.d
+++ b/gcc/testsuite/gdc.test/compilable/typeid_name.d
@@ -9,6 +9,6 @@ class Panzer {}
 class Tiger : Panzer {}
 
 static assert (() {
-    Panzer p = new Tiger(); return classname(p); 
+    Panzer p = new Tiger(); return classname(p);
 } () == "Tiger");
 
diff --git a/gcc/testsuite/gdc.test/compilable/vgc1.d b/gcc/testsuite/gdc.test/compilable/vgc1.d
index 8a11657ac3d..8bfe1d079e2 100644
--- a/gcc/testsuite/gdc.test/compilable/vgc1.d
+++ b/gcc/testsuite/gdc.test/compilable/vgc1.d
@@ -65,20 +65,9 @@ void testNewScope()
 
 /***************** DeleteExp *******************/
 
-/*
-TEST_OUTPUT:
----
-compilable/vgc1.d(81): Deprecation: The `delete` keyword has been deprecated.  Use `object.destroy()` (and `core.memory.GC.free()` if applicable) instead.
-compilable/vgc1.d(81): vgc: `delete` requires the GC
-compilable/vgc1.d(82): Deprecation: The `delete` keyword has been deprecated.  Use `object.destroy()` (and `core.memory.GC.free()` if applicable) instead.
-compilable/vgc1.d(82): vgc: `delete` requires the GC
-compilable/vgc1.d(83): Deprecation: The `delete` keyword has been deprecated.  Use `object.destroy()` (and `core.memory.GC.free()` if applicable) instead.
-compilable/vgc1.d(83): vgc: `delete` requires the GC
----
-*/
 void testDelete(int* p, Object o, S1* s)
 {
-    delete p;
-    delete o;
-    delete s;
+    destroy(p);
+    destroy(o);
+    destroy(s);
 }