revert back to the inout diagnosis

Author: phausler

lib/Sema/TypeCheckConcurrency.cpp

@@ -820,9 +820,9 @@ namespace {
             if (isAsyncCall(outerCall)) {
               // This call is a partial application within an async call.
               // If the partial application take a value inout, it is bad.
-              // if (InOutExpr *inoutArg = dyn_cast<InOutExpr>(
-              //         call->getArg()->getSemanticsProvidingExpr()))
-              //   diagnoseInOutArg(outerCall, inoutArg, true);
+              if (InOutExpr *inoutArg = dyn_cast<InOutExpr>(
+                      call->getArg()->getSemanticsProvidingExpr()))
+                diagnoseInOutArg(outerCall, inoutArg, true);
             }
           }