Error code validation for error filters.

pkg/analyzer/test/generated/all_the_rest_test.dart

 // Copyright (c) 2014, 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.
 
 library engine.all_the_rest_test;
 
 import 'package:analyzer/file_system/physical_file_system.dart';
 import 'package:analyzer/src/generated/ast.dart' hide ConstantEvaluator;
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:analyzer/src/generated/element.dart';
@@ skipping 7332 matching lines @@
 foo: bar
 zap: baz
 ''';
 
     int offset = src.indexOf('baz');
     int length = 'baz'.length;
 
     SourceSpan span = new SourceFile(src).span(offset, offset + length);
 
     reporter.reportErrorForSpan(
-        AnalysisOptionsWarningCode.UNSUPPORTED_OPTION, span, ['test', 'zap']);
+        AnalysisOptionsWarningCode.UNSUPPORTED_OPTION_WITH_LEGAL_VALUE,
+        span,
+        ['test', 'zip', 'zap']);
     expect(listener.errors, hasLength(1));
     expect(listener.errors.first.offset, offset);
     expect(listener.errors.first.length, length);
   }
 
   void test_reportTypeErrorForNode_differentNames() {
     DartType firstType = createType("/test1.dart", "A");
     DartType secondType = createType("/test2.dart", "B");
     GatheringErrorListener listener = new GatheringErrorListener();
     ErrorReporter reporter =
@@ skipping 2059 matching lines @@
     if (_expectedExternalScriptName == null) {
       expect(scriptSource, isNull, reason: "script $scriptIndex");
     } else {
       expect(scriptSource, isNotNull, reason: "script $scriptIndex");
       String actualExternalScriptName = scriptSource.shortName;
       expect(actualExternalScriptName, _expectedExternalScriptName,
           reason: "script $scriptIndex");
     }
   }
 }