Move spaces from before comments to within comments

tests/compiler/dart2js_extra/label_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.
 
 // A break label must be declared where it's used.
 undeclaredBreakLabel1() {
   foo: { break bar; break foo; }  /// 01: compile-time error
 }
 
 undeclaredBreakLabel2() {
@@ skipping 15 matching lines @@
   foo: if (true) continue; else break foo;  /// 05: compile-time error
 }
 
 // A continue label must point to a continue-able statement.
 wrongContinueLabel() {
   foo: if (true) continue foo;  /// 06: compile-time error
 }
 
 // Labels are not captured by closures.
 noncaptureLabel() {
-  foo: {                    /// 07: compile-time error
+  foo: { //                 /// 07: compile-time error
     (() { break foo; })();  /// 07: continued

[sra1, 2017/03/21 01:43:46]

//

[Jacob, 2017/03/21 02:25:34]

Done.

-    break foo;              /// 07: continued
-  }                         /// 07: continued
+    break foo; //           /// 07: continued
+  } //                      /// 07: continued
 }
 
 // Implicit break targets are not captured by closures.
 noncaptureBreak() {
   while(true) (() { break; })();  /// 08: compile-time error
 }
 
 // Implicit continue targets are not captured by closures.
 noncaptureContinue() {
   while(true) (() { continue; })();  /// 09: compile-time error
 }
 
 main() {
   undeclaredBreakLabel1();
   undeclaredBreakLabel2();
   noBreakTarget();
   undeclaredContinueLabel();
   noContinueTarget();
   wrongContinueLabel();
   noncaptureLabel();
   noncaptureBreak();
   noncaptureContinue();
 }