Fix for NPE in the field creation Quick Fix.

pkg/analysis_server/test/services/correction/fix_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 test.services.correction.fix;
 
 import 'package:analysis_server/src/protocol.dart' hide AnalysisError;
 import 'package:analysis_server/src/services/correction/fix.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/source/package_map_resolver.dart';
@@ skipping 582 matching lines @@
     resolveTestUnit('''
 class A {
   A._named(p);
 }
 class B extends A {
 }
 ''');
     assertNoFix(FixKind.CREATE_CONSTRUCTOR_SUPER);
   }
 
+  void test_createField_BAD_inEnum() {
+    resolveTestUnit('''
+enum MyEnum {
+  AAA, BBB
+}
+main() {
+  MyEnum.foo;
+}
+''');
+    assertNoFix(FixKind.CREATE_FIELD);
+  }
+
   void test_createField_BAD_inSDK() {
     resolveTestUnit('''
 main(List p) {
   p.foo = 1;
 }
 ''');
     assertNoFix(FixKind.CREATE_FIELD);
   }
 
   void test_createField_getter_multiLevel() {
@@ skipping 2708 matching lines @@
 
   List<Position> _findResultPositions(List<String> searchStrings) {
     List<Position> positions = <Position>[];
     for (String search in searchStrings) {
       int offset = resultCode.indexOf(search);
       positions.add(new Position(testFile, offset));
     }
     return positions;
   }
 }