Remove JavaIterator and MapEntry

pkg/analysis_server/lib/src/services/refactoring/extract_method.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.src.refactoring.extract_method;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
 import 'package:analysis_server/src/services/correction/name_suggestion.dart';
@@ skipping 921 matching lines @@
     }
     // prepare normalized node source
     _SourcePattern nodePattern = ref._getSourcePattern(nodeRange);
     String nodeSource = _getNormalizedSource(nodePattern.patternSource);
     // if matches normalized node source, then add as occurrence
     if (nodeSource == selectionSource) {
       _Occurrence occurrence =
           new _Occurrence(nodeRange, ref.selectionRange.intersects(nodeRange));
       ref._occurrences.add(occurrence);
       // prepare mapping of parameter names to the occurrence variables
-      for (MapEntry<String, String> entry in getMapEntrySet(
-          nodePattern.originalToPatternNames)) {
-        String patternName = entry.getValue();
-        String originalName = entry.getKey();
+      nodePattern.originalToPatternNames.forEach((String patternName, String originalName) {
         String selectionName = patternToSelectionName[patternName];
         occurrence._parameterOldToOccurrenceName[selectionName] = originalName;
-      }
+      });
       // update static
       if (forceStatic) {
         ref._staticContext = true;
       }
       // we have match
       return true;
     }
     // no match
     return false;
   }
@@ skipping 139 matching lines @@
 
 /**
  * Generalized version of some source, in which references to the specific
  * variables are replaced with pattern variables, with back mapping from the
  * pattern to the original variable names.
  */
 class _SourcePattern {
   String patternSource;
   Map<String, String> originalToPatternNames = {};
 }