[ASTDump] Change parameter to StringRef

llvm-svn: 351011

2 files changed, 3 insertions, 3 deletions

diff --git a/clang/include/clang/AST/TextNodeDumper.h b/clang/include/clang/AST/TextNodeDumper.h
index ddf548e41840..2c3cc7294c1b 100644
--- a/clang/include/clang/AST/TextNodeDumper.h
+++ b/clang/include/clang/AST/TextNodeDumper.h
@@ -160,7 +160,7 @@ public:
   void dumpAccessSpecifier(AccessSpecifier AS);
   void dumpCXXTemporary(const CXXTemporary *Temporary);
 
-  void dumpDeclRef(const Decl *D, const char *Label = nullptr);
+  void dumpDeclRef(const Decl *D, StringRef Label = {});
 
   void visitTextComment(const comments::TextComment *C,
                         const comments::FullComment *);
diff --git a/clang/lib/AST/TextNodeDumper.cpp b/clang/lib/AST/TextNodeDumper.cpp
index 2a240412a297..9c0496dd6936 100644
--- a/clang/lib/AST/TextNodeDumper.cpp
+++ b/clang/lib/AST/TextNodeDumper.cpp
@@ -184,12 +184,12 @@ void TextNodeDumper::dumpCXXTemporary(const CXXTemporary *Temporary) {
   OS << ")";
 }
 
-void TextNodeDumper::dumpDeclRef(const Decl *D, const char *Label) {
+void TextNodeDumper::dumpDeclRef(const Decl *D, StringRef Label) {
   if (!D)
     return;
 
   AddChild([=] {
-    if (Label)
+    if (!Label.empty())
       OS << Label << ' ';
     dumpBareDeclRef(D);
   });