Make more use of generated classes in analysis server.

pkg/analysis_server/lib/src/services/correction/util.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.correction.util;
 
-import 'package:analysis_server/src/services/correction/change.dart';
+import 'package:analysis_server/src/protocol2.dart' show SourceEdit;
 import 'package:analysis_server/src/services/correction/source_range.dart';
 import 'package:analysis_server/src/services/correction/strings.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/resolver.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/source.dart';
 
 
@@ skipping 206 matching lines @@
       }
     }
     return _endOfLine;
   }
 
   /**
    * Returns an [Edit] that changes indentation of the source of the given
    * [SourceRange] from [oldIndent] to [newIndent], keeping indentation of lines
    * relative to each other.
    */
-  Edit createIndentEdit(SourceRange range, String oldIndent, String newIndent) {
+  SourceEdit createIndentEdit(SourceRange range, String oldIndent,
+      String newIndent) {
     String newSource = replaceSourceRangeIndent(range, oldIndent, newIndent);
-    return new Edit(range.offset, range.length, newSource);
+    return new SourceEdit(range.offset, range.length, newSource);
   }
 
   /**
    * Returns the actual type source of the given [Expression], may be `null`
    * if can not be resolved, should be treated as the `dynamic` type.
    */
   String getExpressionTypeSource(Expression expression) {
     if (expression == null) {
       return null;
     }
@@ skipping 638 matching lines @@
       int newOperatorPrecedence) {
     if (expr._precedence < newOperatorPrecedence) {
       return "(${expr._source})";
     }
     return expr._source;
   }
 
   static _InvertedCondition _simple(String source) =>
       new _InvertedCondition(2147483647, source);
 }