Move name mangling support from CodeGen to AST.  In the
process, perform a number of refactorings:

- Move MiscNameMangler member functions to MangleContext
- Remove GlobalDecl dependency from MangleContext
- Make MangleContext abstract and move Itanium/Microsoft functionality
  to their own classes/files
- Implement ASTContext::createMangleContext and have CodeGen use it

No (intended) functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123386 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenTBAA.cpp b/lib/CodeGen/CodeGenTBAA.cpp
index 61dc41e..71b4301 100644
--- a/lib/CodeGen/CodeGenTBAA.cpp
+++ b/lib/CodeGen/CodeGenTBAA.cpp
@@ -16,8 +16,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "CodeGenTBAA.h"
-#include "Mangle.h"
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/Mangle.h"
 #include "llvm/LLVMContext.h"
 #include "llvm/Metadata.h"
 #include "llvm/Constants.h"