Move spaces from before comments to within comments

tests/language/duplicate_implements_test.dart

Index: tests/language/duplicate_implements_test.dart
diff --git a/tests/language/duplicate_implements_test.dart b/tests/language/duplicate_implements_test.dart
index e9ff103dcfa786055cd5231e53399cd54403bd2a..ac7f2a561744ecb17c7df0f369047d19e47c086b 100644
--- a/tests/language/duplicate_implements_test.dart
+++ b/tests/language/duplicate_implements_test.dart
@@ -8,11 +8,11 @@ abstract class I { }
 abstract class J { }
 abstract class K<T> { }
 
-class X implements I, J, I { }               /// 01: compile-time error
+class X implements I, J, I { } //            /// 01: compile-time error
 class X implements J, I, K<int>, K<int> { }  /// 02: compile-time error
 
-abstract class Z implements I, J, J { }              /// 03: compile-time error
-abstract class Z implements K<int>, K<int> { }       /// 04: compile-time error
+abstract class Z implements I, J, J { } //           /// 03: compile-time error
+abstract class Z implements K<int>, K<int> { } //    /// 04: compile-time error
 
 main() {
   X x = new X();  /// 01: continued