Support IRgen of va_arg of structure as l-value.

llvm-svn: 64325
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index fcd0eba..39f1c1d 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -555,8 +555,10 @@
 
   // Note: only availabe for agg return types
   LValue EmitBinaryOperatorLValue(const BinaryOperator *E);
-  // Note: only availabe for agg return types
+  // Note: only available for agg return types
   LValue EmitCallExprLValue(const CallExpr *E);
+  // Note: only available for agg return types
+  LValue EmitVAArgExprLValue(const VAArgExpr *E);
   LValue EmitDeclRefLValue(const DeclRefExpr *E);
   LValue EmitStringLiteralLValue(const StringLiteral *E);
   LValue EmitPredefinedFunctionName(unsigned Type);