Move spaces from before comments to within comments

tests/language/mixin_illegal_constructor_test.dart

Index: tests/language/mixin_illegal_constructor_test.dart
diff --git a/tests/language/mixin_illegal_constructor_test.dart b/tests/language/mixin_illegal_constructor_test.dart
index d0a59fbdd5349d35911ef835039116ad1350642e..98431554b25a17b34882e91fcc976d8a03ad1996 100644
--- a/tests/language/mixin_illegal_constructor_test.dart
+++ b/tests/language/mixin_illegal_constructor_test.dart
@@ -16,16 +16,16 @@ class M2 {
 }
 
 class C0 = Object with M0;
-class C1 = Object with M1;      /// 01: compile-time error
-class C2 = Object with M2;      /// 02: compile-time error
+class C1 = Object with M1; //   /// 01: compile-time error
+class C2 = Object with M2; //   /// 02: compile-time error
 class C3 = Object with M0, M1;  /// 03: compile-time error
 class C4 = Object with M1, M0;  /// 04: compile-time error
 class C5 = Object with M0, M2;  /// 05: compile-time error
 class C6 = Object with M2, M0;  /// 06: compile-time error
 
 class D0 extends Object with M0 { }
-class D1 extends Object with M1 { }      /// 07: compile-time error
-class D2 extends Object with M2 { }      /// 08: compile-time error
+class D1 extends Object with M1 { } //   /// 07: compile-time error
+class D2 extends Object with M2 { } //   /// 08: compile-time error
 class D3 extends Object with M0, M1 { }  /// 09: compile-time error
 class D4 extends Object with M1, M0 { }  /// 10: compile-time error
 class D5 extends Object with M0, M2 { }  /// 11: compile-time error