Generated front_end/testcases/inference test files from Analyzer tests.

pkg/front_end/testcases/inference/propagate_inference_transitively.dart

+// Copyright (c) 2017, 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.
+
+/*@testedFeatures=inference*/
+library test;
+
+class A {
+  int x = 2;
+}
+
+test5() {
+  var /*@type=A*/ a1 = new A();
+  /*@promotedType=none*/ a1.x = /*error:INVALID_ASSIGNMENT*/ "hi";
+
+  A a2 = new A();
+  /*@promotedType=none*/ a2.x = /*error:INVALID_ASSIGNMENT*/ "hi";
+}