Prettify ignore syntax (#25685).

pkg/analyzer/test/generated/error_suppression_test.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 
 import '../reflective_tests.dart';
 import '../utils.dart';
 import 'resolver_test.dart';
 
 main() {
   initializeTestEnvironment();
   runReflectiveTests(ErrorSuppressionTest);
 }
 
 @reflectiveTest
 class ErrorSuppressionTest extends ResolverTestCase {
   void test_error_code_mismatch() {
     Source source = addSource('''
-//# ignore: const_initialized_with_non_constant_value
+// ignore: const_initialized_with_non_constant_value
 int x = '';
 const y = x; //CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, [
       StaticTypeWarningCode.INVALID_ASSIGNMENT,
       CompileTimeErrorCode.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
     ]);
   }
 
   void test_ignore_first() {
     Source source = addSource('''
-//# ignore: invalid_assignment
+// ignore: invalid_assignment
 int x = '';
 // ... but no ignore here ...
 const y = x; //CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source,
         [CompileTimeErrorCode.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE]);
   }
 
   void test_ignore_second() {
     Source source = addSource('''
 //INVALID_ASSIGNMENT
 int x = '';
-//# ignore: const_initialized_with_non_constant_value
+// ignore: const_initialized_with_non_constant_value
 const y = x; //CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, [StaticTypeWarningCode.INVALID_ASSIGNMENT]);
   }
 
   void test_invalid_error_code() {
     Source source = addSource('''
-//# ignore: right_format_wrong_code
+// ignore: right_format_wrong_code
 int x = '';
 const y = x; //CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, [
       StaticTypeWarningCode.INVALID_ASSIGNMENT,
       CompileTimeErrorCode.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
     ]);
   }
 
   void test_missing_error_codes() {
     Source source = addSource('''
     int x = 3;
-//# ignore:
+// ignore:
 const String y = x; //INVALID_ASSIGNMENT, CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, [
       StaticTypeWarningCode.INVALID_ASSIGNMENT,
       CompileTimeErrorCode.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
     ]);
   }
 
-  void test_missing_metadata_prefix() {
+  void test_missing_metadata_suffix() {
     Source source = addSource('''
-// ignore: invalid_assignment
+// ignore invalid_assignment
 String y = 3; //INVALID_ASSIGNMENT
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, [StaticTypeWarningCode.INVALID_ASSIGNMENT]);
   }
 
   void test_multiple_comments() {
     Source source = addSource('''
 int x = ''; //This is the first comment...
-//# ignore: const_initialized_with_non_constant_value
+// ignore: const_initialized_with_non_constant_value
 const y = x; //CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, [StaticTypeWarningCode.INVALID_ASSIGNMENT]);
   }
 
   void test_multiple_ignores() {
     Source source = addSource('''
 int x = 3;
-//# ignore: invalid_assignment, const_initialized_with_non_constant_value
+// ignore: invalid_assignment, const_initialized_with_non_constant_value
 const String y = x; //INVALID_ASSIGNMENT, CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, []);
   }
 
   void test_multiple_ignores_whitespace_variant_1() {
     Source source = addSource('''
 int x = 3;
-//#ignore:invalid_assignment,const_initialized_with_non_constant_value
+//ignore:invalid_assignment,const_initialized_with_non_constant_value
 const String y = x; //INVALID_ASSIGNMENT, CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, []);
   }
 
   void test_multiple_ignores_whitespace_variant_2() {
     Source source = addSource('''
 int x = 3;
-//#ignore: invalid_assignment,const_initialized_with_non_constant_value
+//ignore: invalid_assignment,const_initialized_with_non_constant_value
 const String y = x; //INVALID_ASSIGNMENT, CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, []);
   }
 
   void test_multiple_ignores_whitespace_variant_3() {
     Source source = addSource('''
 int x = 3;
-//# ignore: invalid_assignment,const_initialized_with_non_constant_value
+// ignore: invalid_assignment,const_initialized_with_non_constant_value
 const String y = x; //INVALID_ASSIGNMENT, CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, []);
   }
 
   void test_no_ignores() {
     Source source = addSource('''
 int x = '';  //INVALID_ASSIGNMENT
 const y = x; //CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
 ''');
     computeLibrarySourceErrors(source);
     assertErrors(source, [
       StaticTypeWarningCode.INVALID_ASSIGNMENT,
       CompileTimeErrorCode.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
     ]);
   }
 }