Add overidding for methods for vtable building for the secondary
vtables.  Add thunk generation.  WIP.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81014 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 98e3bf3..2368a08 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -235,6 +235,10 @@
   /// GenerateRtti - Generate the rtti information for the given type.
   llvm::Constant *GenerateRtti(const CXXRecordDecl *RD);
 
+  /// BuildThunk - Build a thunk for the given method
+  llvm::Constant *BuildThunk(const CXXMethodDecl *MD, bool Extern, bool Virtual,
+                             int64_t nv, int64_t v);
+
   /// GetStringForStringLiteral - Return the appropriate bytes for a string
   /// literal, properly padded to match the literal type. If only the address of
   /// a constant is needed consider using GetAddrOfConstantStringLiteral.