Replace LIBRARY_ELEMENT6 with LIBRARY_ELEMENT.

pkg/analyzer/test/src/task/dart_test.dart

 // Copyright (c) 2015, 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.src.task.dart_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 657 matching lines @@
 class B {
   B(int i);
 }
 class M1 {}
 class M2 {}
 
 class C2 = C1 with M2;
 class C1 = B with M1;
 class C3 = B with M2;
 ''');
-    _computeResult(source, LIBRARY_ELEMENT6);
+    _computeResult(source, LIBRARY_ELEMENT);
     expect(task, new isInstanceOf<BuildLibraryConstructorsTask>());
-    LibraryElement libraryElement = outputs[LIBRARY_ELEMENT6];
+    LibraryElement libraryElement = outputs[LIBRARY_ELEMENT];
     // C1
     {
       ClassElement classElement = libraryElement.getType('C2');
       List<ConstructorElement> constructors = classElement.constructors;
       expect(constructors, hasLength(1));
       expect(constructors[0].parameters, hasLength(1));
     }
     // C3
     {
       ClassElement classElement = libraryElement.getType('C3');
@@ skipping 1138 matching lines @@
     return entryMap.putIfAbsent(target, () => new CacheEntry());
   }
 
   TimestampedData<String> getContents(Source source) => source.contents;
 
   noSuchMethod(Invocation invocation) {
     print('noSuchMethod: ${invocation.memberName}');
     return super.noSuchMethod(invocation);
   }
 }