Remove uses of the old plugin model from the analysis server

pkg/analysis_server/lib/src/domain_completion.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.
 
 import 'dart:async';
 
 import 'package:analysis_server/protocol/protocol.dart';
 import 'package:analysis_server/protocol/protocol_constants.dart';
 import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/collections.dart';
 import 'package:analysis_server/src/domain_abstract.dart';
 import 'package:analysis_server/src/plugin/plugin_manager.dart';
 import 'package:analysis_server/src/provisional/completion/completion_core.dart';
 import 'package:analysis_server/src/services/completion/completion_core.dart';
 import 'package:analysis_server/src/services/completion/completion_performance.dart';
+import 'package:analysis_server/src/services/completion/dart/completion_manager.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer_plugin/protocol/protocol.dart' as plugin;
 import 'package:analyzer_plugin/protocol/protocol_common.dart';
 import 'package:analyzer_plugin/protocol/protocol_constants.dart' as plugin;
 import 'package:analyzer_plugin/protocol/protocol_generated.dart' as plugin;
 
 /**
  * Instances of the class [CompletionDomainHandler] implement a [RequestHandler]
  * that handles requests in the completion domain.
@@ skipping 56 matching lines @@
     if (driver != null) {
       requestParams = new plugin.CompletionGetSuggestionsParams(file, offset);
       pluginFutures = server.pluginManager
           .broadcastRequest(requestParams, contextRoot: driver.contextRoot);
     }
     //
     // Compute completions generated by server.
     //
     List<CompletionSuggestion> suggestions = <CompletionSuggestion>[];
     if (request.result != null) {
-      Iterable<CompletionContributor> newContributors =
-          server.serverPlugin.completionContributors;
-
       const COMPUTE_SUGGESTIONS_TAG = 'computeSuggestions';
       performance.logStartTime(COMPUTE_SUGGESTIONS_TAG);
 
-      for (CompletionContributor contributor in newContributors) {
-        String contributorTag = 'computeSuggestions - ${contributor
-            .runtimeType}';
-        performance.logStartTime(contributorTag);
-        try {
-          suggestions.addAll(await contributor.computeSuggestions(request));
-        } on AbortCompletion {
-          suggestions.clear();
-          break;
-        }
-        performance.logElapseTime(contributorTag);
+      CompletionContributor contributor = new DartCompletionManager();
+      String contributorTag = 'computeSuggestions - ${contributor
+          .runtimeType}';
+      performance.logStartTime(contributorTag);
+      try {
+        suggestions.addAll(await contributor.computeSuggestions(request));
+      } on AbortCompletion {
+        suggestions.clear();
       }
+      performance.logElapseTime(contributorTag);
       performance.logElapseTime(COMPUTE_SUGGESTIONS_TAG);
     }
     // TODO (danrubel) if request is obsolete (processAnalysisRequest returns
     // false) then send empty results
 
     //
     // Add the fixes produced by plugins to the server-generated fixes.
     //
     if (pluginFutures != null) {
       List<plugin.Response> responses = await waitForResponses(pluginFutures,
@@ skipping 172 matching lines @@
   final int replacementOffset;
 
   /**
    * The suggested completions.
    */
   final List<CompletionSuggestion> suggestions;
 
   CompletionResult(
       this.replacementOffset, this.replacementLength, this.suggestions);
 }