Move spaces from before comments to within comments

tests/compiler/dart2js/elide_callthrough_stub_test.dart

 // Copyright (c) 2016, 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.
 
 // Check that calls through fields elide the call-through stub.  This
 // optimization is done by the simplifier, so inlining does not need to be
 // enabled.
 
 import 'package:async_helper/async_helper.dart';
 import 'package:expect/expect.dart';
 import 'compiler_helper.dart';
 
 const String TEST1 = r'''
 class W {
   final Function _fun;
   W(this._fun);
-  foo(zzz) => _fun(zzz);   // this._fun$1(zzz) -->  this._fun.call$1(zzz)
+  foo(zzz) => _fun(zzz); //   this._fun$1(zzz) -->  this._fun.call$1(zzz)
 }
 add1(x) => x + 1;
 main() {
   var w = new W(add1);
   var x = w.foo(42);
 }
 ''';
 
 const String TEST2 = r'''
 class W {
   final Function __fun;
   Function get _fun => __fun;
   W(this.__fun);
-  foo(zzz) => _fun(zzz);   // this._fun$1(zzz) stays same.
+  foo(zzz) => _fun(zzz); //   this._fun$1(zzz) stays same.
 }
 add1(x) => x + 1;
 main() {
   var w = new W(add1);
   var x = w.foo(42);
 }
 ''';
 
 main() {
   asyncTest(() => compileAll(TEST1).then((generated) {
         // Direct call through field.
         Expect.isTrue(generated.contains(r'this._fun.call$1(zzz)'));
         // No stub.
         Expect.isFalse(generated.contains(r'_fun$1:'));
         // No call to stub.
         Expect.isFalse(generated.contains(r'_fun$1('));
       }));
 
   asyncTest(() => compileAll(TEST2).then((generated) {
         // No call through field.
         Expect.isFalse(generated.contains(r'this._fun.call$1(zzz)'));
         // Call through stub.
         Expect.isTrue(generated.contains(r'this._fun$1(zzz)'));
         // Stub is generated.
         Expect.isTrue(generated.contains(r'_fun$1:'));
         // Call through getter (inside stub).
         Expect.isTrue(generated.contains(r'get$_fun().call$1'));
       }));
 }