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

pkg/front_end/testcases/inference/constructors_infer_from_arguments.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 C<T> {
+  T t;
+  C(this.t);
+}
+
+main() {
+  var /*@type=C<int>*/ x = /*@typeArgs=int*/ new C(42);
+
+  num y;
+  C<int> c_int = /*@typeArgs=int*/ new C(
+      /*info:DOWN_CAST_IMPLICIT*/ /*@promotedType=none*/ y);
+
+  // These hints are not reported because we resolve with a null error listener.
+  C<num> c_num = /*@typeArgs=num*/ new C(123);
+  C<num> c_num2 = (/*@typeArgs=num*/ new C(456))..t = 1.0;
+
+  // Down't infer from explicit dynamic.
+  var /*@type=C<dynamic>*/ c_dynamic = new C<dynamic>(42);
+  /*@promotedType=none*/ x.t = /*error:INVALID_ASSIGNMENT*/ 'hello';
+}