Evaluate expression before NSM

tests/language/regress_22936_test.dart

+// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Regression test for issue 22936.
+
+import 'package:expect/expect.dart';
+
+bool fooCalled = false;
+
+foo() {
+  fooCalled = true;
+  return null;
+}
+
+main() {
+  final x = null;
+  bool assignmentFailed = false;
+  try {
+    x = foo();
+  } on NoSuchMethodError {
+    assignmentFailed = true;
+  }
+  Expect.isTrue(fooCalled);
+  Expect.isTrue(assignmentFailed);
+}