Simplify code a bit by using CallArgList::add.  No intended functionality change.

llvm-svn: 130699
diff --git a/clang/lib/CodeGen/CGVTables.cpp b/clang/lib/CodeGen/CGVTables.cpp
index 678b115..581467c 100644
--- a/clang/lib/CodeGen/CGVTables.cpp
+++ b/clang/lib/CodeGen/CGVTables.cpp
@@ -2675,7 +2675,7 @@
   CallArgList CallArgs;
   
   // Add our adjusted 'this' pointer.
-  CallArgs.push_back(std::make_pair(RValue::get(AdjustedThisPtr), ThisType));
+  CallArgs.add(RValue::get(AdjustedThisPtr), ThisType);
 
   // Add the rest of the parameters.
   for (FunctionDecl::param_const_iterator I = MD->param_begin(),