Eliminate the ASTContext parameter from RecordDecl::getDefinition()
and CXXRecordDecl::getDefinition(); it's totally unnecessary. No
functionality change.

llvm-svn: 95836
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index a23f28c..80c1244 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -1398,7 +1398,7 @@
   }
 }
 
-TagDecl* TagDecl::getDefinition(ASTContext& C) const {
+TagDecl* TagDecl::getDefinition() const {
   if (isDefinition())
     return const_cast<TagDecl *>(this);