Clean up many generated constructors

pkg/analysis_server/lib/src/services/refactoring/extract_local.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_local;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
@@ skipping 301 matching lines @@
     }
     return target;
   }
 
   /**
    * Returns [AstNode]s at the offsets of the given [SourceRange]s.
    */
   List<AstNode> _findNodes(List<SourceRange> ranges) {
     List<AstNode> nodes = <AstNode>[];
     for (SourceRange range in ranges) {
-      AstNode node = new NodeLocator.con1(range.offset).searchWithin(unit);
+      AstNode node = new NodeLocator(range.offset).searchWithin(unit);
       nodes.add(node);
     }
     return nodes;
   }
 
   /**
    * Returns the [ExpressionFunctionBody] that encloses [node], or `null`
    * if [node] is not enclosed with an [ExpressionFunctionBody].
    */
   ExpressionFunctionBody _getEnclosingExpressionBody(AstNode node) {
@@ skipping 62 matching lines @@
     {
       String rawSelectionSource = utils.getRangeText(selectionRange);
       List<Token> selectionTokens = TokenUtils.getTokens(rawSelectionSource);
       selectionSource =
           _encodeExpressionTokens(rootExpression, selectionTokens);
     }
     // prepare enclosing function
     AstNode enclosingFunction;
     {
       AstNode selectionNode =
-          new NodeLocator.con1(selectionOffset).searchWithin(unit);
+          new NodeLocator(selectionOffset).searchWithin(unit);
       enclosingFunction = getEnclosingExecutableNode(selectionNode);
     }
     // visit function
     enclosingFunction
         .accept(new _OccurrencesVisitor(this, occurrences, selectionSource));
   }
 
   void _prepareOffsetsLengths() {
     offsets.clear();
     lengths.clear();
@@ skipping 181 matching lines @@
 
   _TokenLocalElementVisitor(this.map);
 
   visitSimpleIdentifier(SimpleIdentifier node) {
     Element element = node.staticElement;
     if (element is LocalVariableElement) {
       map[node.token] = element;
     }
   }
 }