dart2js: run dartfmt on tests

tests/compiler/dart2js/token_naming_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.
 
 import "package:compiler/src/js_backend/js_backend.dart" show TokenScope;
 
 import "package:expect/expect.dart";
 
 String forwardN(TokenScope scope, int N) {
   for (int i = 1; i < N; ++i) {
@@ skipping 21 matching lines @@
   Expect.equals("az", forwardN(scope, 25));
   // Then upper case letters
   Expect.equals("aA", forwardN(scope, 1));
   Expect.equals("aZ", forwardN(scope, 25));
   // Overflow to first position.
   Expect.equals("b_", forwardN(scope, 1));
   // Make sure we skipe g. We have 1 + 10 + 26 + 26 = 63 digits.
   Expect.equals("h_", forwardN(scope, 63 * 5));
   // Likewise, ensure we skip s.
   Expect.equals("t_", forwardN(scope, 63 * 11));
-  // And wrap around another digit. 
+  // And wrap around another digit.
   Expect.equals("a__", forwardN(scope, 63 * 33));
 
   // Test a filtered scope.
   Set<String> illegal = new Set.from(["b", "aa"]);
   scope = new TokenScope(illegal);
 
   // We start with 'a'.
   Expect.equals("a", forwardN(scope, 1));
   // Make sure 'b' is skipped.
   Expect.equals("c", forwardN(scope, 1));
   // We have 24 lower case characters, as s and g are illegal.
   Expect.equals("A", forwardN(scope, 22));
   // Make it overflow by skipping all uppercase.
   Expect.equals("a_", forwardN(scope, 26));
   // Now numbers.
   Expect.equals("a0", forwardN(scope, 1));
   Expect.equals("a9", forwardN(scope, 9));
   // Make sure 'aa' is skipped on wrapping
   Expect.equals("ab", forwardN(scope, 1));
   Expect.equals("az", forwardN(scope, 24));
 }