Better recovery (issue 22693)

pkg/analyzer/test/generated/parser_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.parser_test;
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/incremental_scanner.dart';
@@ skipping 899 matching lines @@
       ParserErrorCode.DUPLICATE_LABEL_IN_SWITCH_STATEMENT
     ]);
   }
 
   void test_emptyEnumBody() {
     ParserTestCase.parse3("parseEnumDeclaration", <Object>[
       emptyCommentAndMetadata()
     ], "enum E {}", [ParserErrorCode.EMPTY_ENUM_BODY]);
   }
 
+  void test_enumInClass() {
+    ParserTestCase.parseCompilationUnit(r'''
+class Foo {
+  enum Bar {
+    Bar1, Bar2, Bar3
+  }
+}
+''', [ParserErrorCode.ENUM_IN_CLASS]);
+  }
+
   void test_equalityCannotBeEqualityOperand_eq_eq() {
     ParserTestCase.parseExpression(
         "1 == 2 == 3", [ParserErrorCode.EQUALITY_CANNOT_BE_EQUALITY_OPERAND]);
   }
 
   void test_equalityCannotBeEqualityOperand_eq_neq() {
     ParserTestCase.parseExpression(
         "1 == 2 != 3", [ParserErrorCode.EQUALITY_CANNOT_BE_EQUALITY_OPERAND]);
   }
 
@@ skipping 9264 matching lines @@
         new Scanner(null, new CharSequenceReader(source), listener);
     Token tokenStream = scanner.tokenize();
     //
     // Parse the source.
     //
     Parser parser = new Parser(null, listener);
     return invokeParserMethodImpl(
         parser, methodName, <Object>[tokenStream], tokenStream) as Token;
   }
 }