Sink free mangle* methods into MangleContext.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89547 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index b8027d8..4a30eed 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -168,7 +168,7 @@
 
   llvm::SmallString<256> Name;
   llvm::raw_svector_ostream Out(Name);
-  if (!mangleName(getMangleContext(), ND, Out)) {
+  if (!getMangleContext().mangleName(ND, Out)) {
     assert(ND->getIdentifier() && "Attempt to mangle unnamed decl.");
     return ND->getNameAsCString();
   }