Move spaces from before comments to within comments

tests/language/mixin_illegal_syntax_test.dart

Index: tests/language/mixin_illegal_syntax_test.dart
diff --git a/tests/language/mixin_illegal_syntax_test.dart b/tests/language/mixin_illegal_syntax_test.dart
index 167304ddb4384c6b553e807c018dc43b56d61aad..a470fc9b6e510cbe6fc834b7f3d7ea01c830d5eb 100644
--- a/tests/language/mixin_illegal_syntax_test.dart
+++ b/tests/language/mixin_illegal_syntax_test.dart
@@ -7,21 +7,21 @@ class G<T> { }
 class M { }
 
 class T = S with M;
-typedef T0 = S with M;         /// 00: compile-time error
+typedef T0 = S with M; //      /// 00: compile-time error
 abstract class TA = S with M;
-class T1 = final S with M;     /// 01: compile-time error
-class T2 = var S with M;       /// 02: compile-time error
-class T3 = const S with M;     /// 03: compile-time error
-class T4 = static S with M;    /// 04: compile-time error
+class T1 = final S with M; //  /// 01: compile-time error
+class T2 = var S with M; //    /// 02: compile-time error
+class T3 = const S with M; //  /// 03: compile-time error
+class T4 = static S with M; // /// 04: compile-time error
 class T5 = external S with M;  /// 05: compile-time error
 class T6 = G<int> with M;
 class T7 = G<Map<String,int>> with M;
 
 class C0 extends abstract S with M { }  /// 06: compile-time error
-class C1 extends final S with M { }     /// 07: compile-time error
-class C2 extends var S with M { }       /// 08: compile-time error
-class C3 extends const S with M { }     /// 09: compile-time error
-class C4 extends static S with M { }    /// 10: compile-time error
+class C1 extends final S with M { } //  /// 07: compile-time error
+class C2 extends var S with M { } //    /// 08: compile-time error
+class C3 extends const S with M { } //  /// 09: compile-time error
+class C4 extends static S with M { } // /// 10: compile-time error
 class C5 extends external S with M { }  /// 11: compile-time error
 class C6 extends G<int> with M { }
 class C7 extends G<Map<String,int>> with M { }