Update codeOffset/codeLength during incremental resolution.

pkg/analyzer/lib/src/generated/incremental_resolution_validator.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 analyzer.src.generated.incremental_resolution_validator;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/dart/element/element.dart';
@@ skipping 831 matching lines @@
     String locationA = _getElementLocationWithoutUri(a);
     String locationB = _getElementLocationWithoutUri(b);
     if (locationA != locationB) {
       int offset = other.offset;
       _fail('[$offset]\nExpected: $b ($locationB)\n  Actual: $a ($locationA)');
     }
     if (a == null && b == null) {
       return;
     }
     if (a.nameOffset != b.nameOffset) {
-      _fail('Expected: ${b.nameOffset}\n  Actual: ${a.nameOffset}');
+      _fail('nameOffset\nExpected: ${b.nameOffset}\n  Actual: ${a.nameOffset}');
+    }
+    if (a is ElementImpl && b is ElementImpl && a.codeOffset != b.codeOffset) {
+      _fail('codeOffset\nExpected: ${b.codeOffset}\n  Actual: ${a.codeOffset}');
+    }
+    if (a is ElementImpl && b is ElementImpl && a.codeLength != b.codeLength) {

[Brian Wilkerson, 2016/03/04 19:28:03]

This code is duplicated.

[scheglov, 2016/03/04 19:36:31]

Done.

+      _fail('codeLength\nExpected: ${b.codeLength}\n  Actual: ${a.codeLength}');
     }
     if (a is LocalElement && b is LocalElement) {
       if (a.visibleRange != b.visibleRange) {
         _fail('Expected: ${b.visibleRange}\nActual: ${a.visibleRange}');
       }
     }
   }
 
   void _verifyType(DartType a, DartType b) {
     if (!validateTypes) {
@@ skipping 94 matching lines @@
    *     package:project/my_lib.dart      -> my_lib.dart
    */
   static String _getShortElementLocationUri(String uri) {
     int index = uri.lastIndexOf('/');
     if (index == -1) {
       return uri;
     }
     return uri.substring(index + 1);
   }
 }