diff --git a/tests/language/const/constant_type_variable_error_test.dart b/tests/language/const/constant_type_variable_error_test.dart
index c0e7770690b..6e2438b57e9 100644
--- a/tests/language/const/constant_type_variable_error_test.dart
+++ b/tests/language/const/constant_type_variable_error_test.dart
@@ -8,41 +8,49 @@
 // constant expressions or potentially constant type expressions.
 
 class A<X> {
-  final Object x1, x2, x3, x4, x5, x6, x7, x8, x9;
+  final Object x1, x2, x3, x4, x5, x6, x7, x8;
 
   const A()
       : x1 = const [X],
         //^
         // [analyzer] unspecified
-        // [cfe] unspecified
+        //          ^
+        // [cfe] Type variables can't be used as constants.
         x2 = const <X>[],
         //^
         // [analyzer] unspecified
-        // [cfe] unspecified
+        //          ^
+        // [cfe] Type variables can't be used as constants.
         x3 = const {X},
         //^
         // [analyzer] unspecified
-        // [cfe] unspecified
+        //          ^
+        // [cfe] Type variables can't be used as constants.
         x4 = const <X>{},
         //^
         // [analyzer] unspecified
-        // [cfe] unspecified
+        //          ^
+        // [cfe] Type variables can't be used as constants.
         x5 = const {X: null},
         //^
         // [analyzer] unspecified
-        // [cfe] unspecified
+        //          ^
+        // [cfe] Type variables can't be used as constants.
         x6 = const <X, String?>{},
         //^
         // [analyzer] unspecified
-        // [cfe] unspecified
+        //          ^
+        // [cfe] Type variables can't be used as constants.
         x7 = const B<X>(),
         //^
         // [analyzer] unspecified
-        // [cfe] unspecified
+        //           ^
+        // [cfe] Type variables can't be used as constants.
         x8 = const C(X);
   //^
   // [analyzer] unspecified
-  // [cfe] unspecified
+  //                 ^
+  // [cfe] Type variables can't be used as constants.
 }
 
 class B<X> {