Finish making AST BumpPtrAllocation runtime configurable (based on -disable-free).

snaroff% time ../../Release-Asserts/bin/clang INPUTS/Cocoa_h.m
0.179u 0.051s 0:00.23 95.6%	0+0k 0+0io 0pf+0w
snaroff% time ../../Release-Asserts/bin/clang INPUTS/Cocoa_h.m -disable-free
0.169u 0.052s 0:00.22 95.4%	0+0k 0+0io 0pf+0w


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63153 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index ee242c5..39ca878 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -47,7 +47,7 @@
   // FIXME: how do I pass in Size to ASTContext::new?
   unsigned Size = sizeof(TemplateParameterList) + sizeof(Decl *) * NumParams;
   unsigned Align = llvm::AlignOf<TemplateParameterList>::Alignment;
-  void *Mem = C.getAllocator().Allocate(Size, Align);
+  void *Mem = C.Allocate(Size, Align);
   return new (Mem) TemplateParameterList(Params, NumParams);
 }