Create a VTableContext class and start moving CodeGenVTables methods to it

llvm-svn: 140502
diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index c190fa3..d310165 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -396,6 +396,7 @@
   llvm::Module &getModule() const { return TheModule; }
   CodeGenTypes &getTypes() { return Types; }
   CodeGenVTables &getVTables() { return VTables; }
+  VTableContext &getVTableContext() { return VTables.getVTableContext(); }
   DiagnosticsEngine &getDiags() const { return Diags; }
   const llvm::TargetData &getTargetData() const { return TheTargetData; }
   const TargetInfo &getTarget() const { return Context.getTargetInfo(); }