Fix struct, union, and enum nesting in C++

In C, an enum or structure defined inside other structure has global
scope just like it had been defined outside the struct in the first
place.  However, in C++, such a nested structure is given a name that
is nested inside the structure.  This patch moves such affected
structures/enums out to global scope, so that code using them works
the same in C++ as it works today in C.

gdb/ChangeLog:
2015-02-27  Tom Tromey  <tromey@redhat.com>
	    Pedro Alves  <palves@redhat.com>

	* dwarf2-frame.c (enum cfa_how_kind, struct
	dwarf2_frame_state_reg_info): Move out of struct
	dwarf2_frame_state.
	* dwarf2read.c (struct tu_stats): Move out of struct
	dwarf2_per_objfile.
	(struct file_entry): Move out of struct line_header.
	(struct nextfield, struct nextfnfield, struct fnfieldlist, struct
	typedef_field_list): Move out of struct field_info.
	* gdbtypes.h (enum dynamic_prop_kind, union dynamic_prop_data):
	Move out of struct dynamic_prop.
	(union type_owner, union field_location, struct field, struct
	range_bounds, union type_specific): Move out of struct main_type.
	(struct fn_fieldlist, struct fn_field, struct typedef_field)
	(VOFFSET_STATIC): Move out of struct cplus_struct_type.
	(struct call_site_target, union call_site_parameter_u, struct
	call_site_parameter): Move out of struct call_site.
	* m32c-tdep.c (enum m32c_prologue_kind): Move out of struct
	m32c_prologue.
	(enum srcdest_kind): Move out of struct srcdest.
	* main.c (enum cmdarg_kind): Move out of struct cmdarg.
	* prologue-value.h (enum prologue_value_kind): Move out of struct
	prologue_value.
	* s390-linux-tdep.c (enum s390_abi_kind): Move out of struct
	gdbarch_tdep.
	* stabsread.c (struct nextfield, struct next_fnfieldlist): Move
	out of struct field_info.
	* symfile.h (struct other_sections): Move out of struct
	section_addr_info.
	* symtab.c (struct symbol_cache_slot): Move out struct
	block_symbol_cache.
	* target-descriptions.c (enum tdesc_type_kind): Move out of
	typedef struct tdesc_type.
	* tui/tui-data.h (enum tui_line_or_address_kind): Move out of
	struct tui_line_or_address.
	* value.c (enum internalvar_kind, union internalvar_data): Move
	out of struct internalvar.
	* xtensa-tdep.h (struct ctype_cache): Move out of struct
	gdbarch_tdep.

1 files changed, 62 insertions, 59 deletions

diff --git a/gdb/value.c b/gdb/value.c
index 06da269e42..b9a45efa19 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -1891,6 +1891,66 @@ show_values (char *num_exp, int from_tty)
     }
 }
 
+enum internalvar_kind
+{
+  /* The internal variable is empty.  */
+  INTERNALVAR_VOID,
+
+  /* The value of the internal variable is provided directly as
+     a GDB value object.  */
+  INTERNALVAR_VALUE,
+
+  /* A fresh value is computed via a call-back routine on every
+     access to the internal variable.  */
+  INTERNALVAR_MAKE_VALUE,
+
+  /* The internal variable holds a GDB internal convenience function.  */
+  INTERNALVAR_FUNCTION,
+
+  /* The variable holds an integer value.  */
+  INTERNALVAR_INTEGER,
+
+  /* The variable holds a GDB-provided string.  */
+  INTERNALVAR_STRING,
+};
+
+union internalvar_data
+{
+  /* A value object used with INTERNALVAR_VALUE.  */
+  struct value *value;
+
+  /* The call-back routine used with INTERNALVAR_MAKE_VALUE.  */
+  struct
+  {
+    /* The functions to call.  */
+    const struct internalvar_funcs *functions;
+
+    /* The function's user-data.  */
+    void *data;
+  } make_value;
+
+  /* The internal function used with INTERNALVAR_FUNCTION.  */
+  struct
+  {
+    struct internal_function *function;
+    /* True if this is the canonical name for the function.  */
+    int canonical;
+  } fn;
+
+  /* An integer value used with INTERNALVAR_INTEGER.  */
+  struct
+  {
+    /* If type is non-NULL, it will be used as the type to generate
+       a value for this internal variable.  If type is NULL, a default
+       integer type for the architecture is used.  */
+    struct type *type;
+    LONGEST val;
+  } integer;
+
+  /* A string value used with INTERNALVAR_STRING.  */
+  char *string;
+};
+
 /* Internal variables.  These are variables within the debugger
    that hold values assigned by debugger commands.
    The user refers to them with a '$' prefix
@@ -1905,66 +1965,9 @@ struct internalvar
      enum internalvar_kind specifies the kind, and union internalvar_data
      provides the data associated with this particular kind.  */
 
-  enum internalvar_kind
-    {
-      /* The internal variable is empty.  */
-      INTERNALVAR_VOID,
-
-      /* The value of the internal variable is provided directly as
-	 a GDB value object.  */
-      INTERNALVAR_VALUE,
-
-      /* A fresh value is computed via a call-back routine on every
-	 access to the internal variable.  */
-      INTERNALVAR_MAKE_VALUE,
-
-      /* The internal variable holds a GDB internal convenience function.  */
-      INTERNALVAR_FUNCTION,
-
-      /* The variable holds an integer value.  */
-      INTERNALVAR_INTEGER,
-
-      /* The variable holds a GDB-provided string.  */
-      INTERNALVAR_STRING,
-
-    } kind;
+  enum internalvar_kind kind;
 
-  union internalvar_data
-    {
-      /* A value object used with INTERNALVAR_VALUE.  */
-      struct value *value;
-
-      /* The call-back routine used with INTERNALVAR_MAKE_VALUE.  */
-      struct
-        {
-	  /* The functions to call.  */
-	  const struct internalvar_funcs *functions;
-
-	  /* The function's user-data.  */
-	  void *data;
-        } make_value;
-
-      /* The internal function used with INTERNALVAR_FUNCTION.  */
-      struct
-	{
-	  struct internal_function *function;
-	  /* True if this is the canonical name for the function.  */
-	  int canonical;
-	} fn;
-
-      /* An integer value used with INTERNALVAR_INTEGER.  */
-      struct
-        {
-	  /* If type is non-NULL, it will be used as the type to generate
-	     a value for this internal variable.  If type is NULL, a default
-	     integer type for the architecture is used.  */
-	  struct type *type;
-	  LONGEST val;
-        } integer;
-
-      /* A string value used with INTERNALVAR_STRING.  */
-      char *string;
-    } u;
+  union internalvar_data u;
 };
 
 static struct internalvar *internalvars;