fix constructor suggestion element names

pkg/analysis_server/test/services/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_server/src/protocol.dart' as protocol
     show Element, ElementKind;
@@ skipping 188 matching lines @@
     expect(element.returnType, isNull);
     assertHasNoParameterInfo(cs);
     return cs;
   }
 
   CompletionSuggestion assertSuggestConstructor(String name) {
     CompletionSuggestion cs = assertSuggest(name);
     protocol.Element element = cs.element;
     expect(element, isNotNull);
     expect(element.kind, equals(protocol.ElementKind.CONSTRUCTOR));
-    expect(element.name, name);
+    int index = name.indexOf('.');
+    expect(element.name, index >= 0 ? name.substring(index + 1) : '');
     return cs;
   }
 
   CompletionSuggestion assertSuggestField(String name, String type,
       {int relevance: DART_RELEVANCE_DEFAULT,
       CompletionSuggestionKind kind: CompletionSuggestionKind.INVOCATION,
       bool isDeprecated: false}) {
     CompletionSuggestion cs = assertSuggest(name,
         csKind: kind,
         relevance: relevance,
@@ skipping 2835 matching lines @@
       assertNotSuggested('bar2');
       assertNotSuggested('_B');
       assertSuggestLocalClass('Y');
       assertSuggestLocalClass('C');
       assertSuggestLocalVariable('f', null);
       assertNotSuggested('x');
       assertNotSuggested('e');
     });
   }
 }