quick fix for INVALID_USE_OF_COVARIANT

See: #55917

Change-Id: I9e7ad32fb3aaea28c31b6b29af4b2f1233cb9f78
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/370360
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Brian Wilkerson <[email protected]>
Auto-Submit: Phil Quitslund <[email protected]>

Author: pq

pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml

@@ -997,9 +997,7 @@ CompileTimeErrorCode.INVALID_TYPE_ARGUMENT_IN_CONST_SET:
 CompileTimeErrorCode.INVALID_URI:
   status: noFix
 CompileTimeErrorCode.INVALID_USE_OF_COVARIANT:
-  status: needsFix
-  notes: |-
-    Remove the keyword.
+  status: hasFix
 CompileTimeErrorCode.INVALID_USE_OF_NULL_VALUE:
   status: noFix
 CompileTimeErrorCode.INVOCATION_OF_EXTENSION_WITHOUT_CALL:

pkg/analysis_server/lib/src/services/correction/fix_internal.dart

@@ -1034,6 +1034,9 @@ final _builtInNonLintProducers = <ErrorCode, List<ProducerGenerator>>{
   CompileTimeErrorCode.INVALID_MODIFIER_ON_CONSTRUCTOR: [
     RemoveLexeme.modifier,
   ],
+  CompileTimeErrorCode.INVALID_USE_OF_COVARIANT: [
+    RemoveLexeme.keyword,
+  ],
   CompileTimeErrorCode.INVOCATION_OF_NON_FUNCTION_EXPRESSION: [
     RemoveParenthesesInGetterInvocation.new,
   ],

pkg/analysis_server/test/src/services/correction/fix/remove_lexeme_test.dart

@@ -332,6 +332,19 @@ class A {
 ''');
   }
 
+  Future<void> test_invalidUseOfCovariant() async {
+    await resolveTestCode('''
+class C {
+  void m(void p(covariant int)) {}
+}
+''');
+    await assertHasFix('''
+class C {
+  void m(void p(int)) {}
+}
+''');
+  }
+
   Future<void> test_it() async {
     newFile('$testPackageLibPath/a.dart', '''
 import augment 'test.dart';