Break up another large file

pkg/analysis_server/lib/src/status/validator.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 analysis_server.src.status.validator;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.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/error/error.dart';
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/dart/ast/utilities.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/generated/engine.dart'
     show AnalysisEngine, AnalysisResult, CacheState, ChangeSet;
-import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/resolver.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/utilities_collection.dart';
 import 'package:analyzer/src/task/dart.dart';
 import 'package:analyzer/src/task/html.dart';
 import 'package:analyzer/task/dart.dart';
 import 'package:analyzer/task/model.dart';
 import 'package:html/dom.dart' as html;
 
 /**
@@ skipping 237 matching lines @@
     void writeElement(Element element) {
       _write('an instance of ');
       _write(element.runtimeType);
       if (element.name == null) {
         _write(' with no name');
       } else {
         _write(' named ');
         _write(element.name);
       }
     }
+
     expectedElements.forEach((String name, Element element) {
       _write('Expected ');
       writeElement(element);
       _writeln('; found no match');
     });
     extraElements.forEach((Element element) {
       _write('Expected nothing; found ');
       writeElement(element);
     });
   }
@@ skipping 309 matching lines @@
         _write('Expected a ');
         _write(descriptor);
         _write(' named ');
         _write(expected.name);
         _write('; found a ');
         _write(descriptor);
         _write(' named ');
         _write(actual.name);
       }
     }
+
     void compareTypeArguments(
         ParameterizedType expected, ParameterizedType actual) {
       List<DartType> expectedArguments = expected.typeArguments;
       List<DartType> actualArguments = actual.typeArguments;
       int expectedLength = expectedArguments.length;
       if (expectedLength != actualArguments.length) {
         _write('Expected ');
         _write(expectedLength);
         _write(' type arguments; found ');
         _write(actualArguments.length);
@@ skipping 974 matching lines @@
         for (String name in names) {
           if (first) {
             first = false;
           } else {
             buffer.write(', ');
           }
           buffer.write(name);
         }
         buffer.write('}');
       }
+
       bool needsNewline = false;
       if (missingNames.isNotEmpty) {
         buffer.write('Has ');
         write('missing names', missingNames);
         needsNewline = true;
       }
       if (extraNames.isNotEmpty) {
         if (needsNewline) {
           buffer.write('</p><p>');
         }
@@ skipping 163 matching lines @@
    * Determine whether or not there is any interesting difference between the
    * original and cloned values.
    */
   void _performComparison() {
     StringBuffer buffer = new StringBuffer();
     if (!_compareObjects(cloneValue, originalValue, buffer)) {
       description = buffer.toString();
     }
   }
 }