Be sure to clear out VCall when we clear out VCalls.

Start implementing VTTs.  WIP.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86650 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index f2901be..fdbab24 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -384,6 +384,9 @@
   /// GenerateVtable - Generate the vtable for the given type.
   llvm::Value *GenerateVtable(const CXXRecordDecl *RD);
 
+  /// GenerateVTT - Generate the VTT for the given type.
+  llvm::Value *GenerateVTT(const CXXRecordDecl *RD);
+
   /// DynamicTypeAdjust - Do the non-virtual and virtual adjustments on an
   /// object pointer to alter the dynamic type of the pointer.  Used by
   /// GenerateCovariantThunk for building thunks.