Revert "Transition analyzer and analysis_server to new astFactory; remove old AST factory methods."

pkg/analysis_server/lib/src/services/completion/dart/completion_manager.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 services.completion.dart.manager;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/provisional/completion/completion_core.dart'
     show CompletionContributor, CompletionRequest;
 import 'package:analysis_server/src/provisional/completion/dart/completion_dart.dart';
 import 'package:analysis_server/src/provisional/completion/dart/completion_plugin.dart';
 import 'package:analysis_server/src/provisional/completion/dart/completion_target.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/common_usage_sorter.dart';
 import 'package:analysis_server/src/services/completion/dart/contribution_sorter.dart';
 import 'package:analysis_server/src/services/completion/dart/optype.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/dart/ast/ast.dart';
-import 'package:analyzer/dart/ast/standard_ast_factory.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/exception/exception.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/src/context/context.dart' show AnalysisFutureHelper;
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/dart/ast/token.dart';
 import 'package:analyzer/src/generated/engine.dart' hide AnalysisResult;
 import 'package:analyzer/src/generated/source.dart';
@@ skipping 477 matching lines @@
         // then check the previous token to see if it should be replaced
         token = token.previous;
       }
       if (token != null && isKeywordOrIdentifier(token)) {
         if (token.offset <= requestOffset && requestOffset <= token.end) {
           // Replacement range for typical identifier completion
           return new ReplacementRange(token.offset, token.length);
         }
       }
       if (token is StringToken) {
-        SimpleStringLiteral uri =
-            astFactory.simpleStringLiteral(token, token.lexeme);
+        SimpleStringLiteral uri = new SimpleStringLiteral(token, token.lexeme);
         Keyword keyword = token.previous?.keyword;
         if (keyword == Keyword.IMPORT ||
             keyword == Keyword.EXPORT ||
             keyword == Keyword.PART) {
           int start = uri.contentsOffset;
           var end = uri.contentsEnd;
           if (start <= requestOffset && requestOffset <= end) {
             // Replacement range for import URI
             return new ReplacementRange(start, end - start);
           }
         }
       }
     }
     return new ReplacementRange(requestOffset, 0);
   }
 }