dart2js: run dartfmt on tests

tests/compiler/dart2js_extra/hash_code_test.dart

 // Copyright (c) 2012, 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.
 
 import "package:expect/expect.dart";
 
 // dart2js specific test to make sure hashCode on intercepted types behaves as
 // intended.
 
 @NoInline()
@@ skipping 24 matching lines @@
 
   // We expect that the hash function is reasonable quality - there
   // are some difference in the low bits.
   Expect.isFalse(h1 == h2);
   Expect.isFalse((h1 & 0xf) == (h2 & 0xf));
 }
 
 bools() {
   check(true, false, identityHashCode: false);
 
-  Expect.equals(true.hashCode, hash(true));   // First can be optimized.
+  Expect.equals(true.hashCode, hash(true)); // First can be optimized.
   Expect.equals(false.hashCode, hash(false));
 }
 
 ints() {
   var i1 = 100;
   var i2 = 101;
   check(i1, i2, identityHashCode: false);
   Expect.equals(i1.hashCode, hash(i1));
   Expect.equals(i2.hashCode, hash(i2));
 }
@@ skipping 23 matching lines @@
   Expect.equals(0x0DB819B, 'b'.hashCode);
   Expect.equals(0xEBA5D59, 'c'.hashCode);
 }
 
 main() {
   bools();
   ints();
   lists();
   strings();
 }