Update expectations for instance creations to match front_end.

pkg/front_end/testcases/inference/constructors_too_many_positional_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 A<T> {}
 
 main() {
-  var /*@type=A<dynamic>*/ a = /*@typeArgs=dynamic*/ new A /*error:EXTRA_POSITIONAL_ARGUMENTS*/ (
-      42);
+  var /*@type=A<dynamic>*/ a =
+      new /*@typeArgs=dynamic*/ A /*error:EXTRA_POSITIONAL_ARGUMENTS*/ (42);
 }