rename completion computer to contributor

pkg/analysis_server/lib/src/services/completion/dart_completion_cache.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 services.completion.dart.cache;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analysis_server/src/protocol_server.dart'
@@ skipping 109 matching lines @@
     importedConstructorSuggestions = <CompletionSuggestion>[];
     importedVoidReturnSuggestions = <CompletionSuggestion>[];
     importedClassMap = new Map<String, ClassElement>();
     _importedCompletions = new HashSet<String>();
 
     // Assert that the compilation unit is resolved
     // and represents the expected source
     assert(unit.element.source == source);
 
     // Exclude elements from local library
-    // because they are provided by LocalComputer
+    // because they are provided by LocalReferenceContributor
     Set<LibraryElement> excludedLibs = new Set<LibraryElement>();
     excludedLibs.add(unit.element.enclosingElement);
 
     // Determine the compilation unit defining the library containing
     // this compilation unit
     List<Source> libraries = context.getLibrariesContaining(source);
     assert(libraries != null);
     Source libSource = libraries.length > 0 ? libraries[0] : null;
     Future<CompilationUnit> futureLibUnit = _computeLibUnit(libSource, unit);
 
@@ skipping 89 matching lines @@
                   .createImportNamespaceForDirective(importElem);
               // Include top level elements
               importNamespace.definedNames.forEach((String name, Element elem) {
                 if (elem is ClassElement) {
                   importedClassMap[name] = elem;
                 }
                 _addSuggestion(elem, DART_RELEVANCE_DEFAULT);
               });
             } else {
               // Exclude elements from prefixed imports
-              // because they are provided by InvocationComputer
+              // because they are provided by PrefixedElementContributor
               _addLibraryPrefixSuggestion(importElem);
               excludedLibs.add(importElem.importedLibrary);
             }
           }
         } else if (directive is PartDirective) {
           CompilationUnitElement partElem = directive.element;
           if (partElem != null && partElem.source != source) {
             partElem.accept(new _NonLocalElementCacheVisitor(this));
           }
         }
@@ skipping 133 matching lines @@
   @override
   void visitFunctionTypeAliasElement(FunctionTypeAliasElement element) {
     cache._addSuggestion(element, DART_RELEVANCE_DEFAULT);
   }
 
   @override
   void visitTopLevelVariableElement(TopLevelVariableElement element) {
     cache._addSuggestion(element, DART_RELEVANCE_DEFAULT);
   }
 }