rename CompletionSuggestionKind.VARIABLE to LOCAL_VARIABLE to match spec

pkg/analysis_services/test/completion/completion_test_util.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.completion.util;
 
 import 'dart:async';
 
 import 'package:analysis_services/completion/completion_computer.dart';
 import 'package:analysis_services/completion/completion_suggestion.dart';
@@ skipping 102 matching lines @@
   void assertSuggestTopLevelVar(String completion,
       [CompletionRelevance relevance = CompletionRelevance.DEFAULT]) {
     assertSuggest(
         CompletionSuggestionKind.TOP_LEVEL_VARIABLE,
         completion,
         relevance);
   }
 
   void assertSuggestVariable(String completion, [CompletionRelevance relevance =
       CompletionRelevance.DEFAULT]) {
-    assertSuggest(CompletionSuggestionKind.VARIABLE, completion, relevance);
+    assertSuggest(CompletionSuggestionKind.LOCAL_VARIABLE, completion, relevance);
   }
 
   bool computeFast() {
     _computeFastCalled = true;
     computer
         ..context = context
         ..searchEngine = searchEngine
         ..source = testSource
         ..offset = completionOffset;
     suggestions = [];
@@ skipping 23 matching lines @@
   }
 
   @override
   void setUp() {
     super.setUp();
     index = createLocalMemoryIndex();
     searchEngine = new SearchEngineImpl(index);
     addResolvedUnit(MockSdk.LIB_CORE.path, MockSdk.LIB_CORE.content);
   }
 }