Serialize and resynthesize labels.

pkg/analyzer/test/generated/resolver_test.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.test.generated.resolver_test;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
@@ skipping 1474 matching lines @@
     expect(expression.propagatedElement, getMethod(numType, "+"));
     _listener.assertNoErrors();
   }
 
   void test_visitBreakStatement_withLabel() {
     // loop: while (true) {
     //   break loop;
     // }
     String label = "loop";
     LabelElementImpl labelElement =
-        new LabelElementImpl(AstFactory.identifier3(label), false, false);
+        new LabelElementImpl.forNode(AstFactory.identifier3(label), false, false);
     BreakStatement breakStatement = AstFactory.breakStatement2(label);
     Expression condition = AstFactory.booleanLiteral(true);
     WhileStatement whileStatement =
         AstFactory.whileStatement(condition, breakStatement);
     expect(_resolveBreak(breakStatement, labelElement, whileStatement),
         same(labelElement));
     expect(breakStatement.target, same(whileStatement));
     _listener.assertNoErrors();
   }
 
@@ skipping 69 matching lines @@
     expect(name.staticElement, same(constructor));
     _listener.assertNoErrors();
   }
 
   void test_visitContinueStatement_withLabel() {
     // loop: while (true) {
     //   continue loop;
     // }
     String label = "loop";
     LabelElementImpl labelElement =
-        new LabelElementImpl(AstFactory.identifier3(label), false, false);
+        new LabelElementImpl.forNode(AstFactory.identifier3(label), false, false);
     ContinueStatement continueStatement = AstFactory.continueStatement(label);
     Expression condition = AstFactory.booleanLiteral(true);
     WhileStatement whileStatement =
         AstFactory.whileStatement(condition, continueStatement);
     expect(_resolveContinue(continueStatement, labelElement, whileStatement),
         same(labelElement));
     expect(continueStatement.target, same(whileStatement));
     _listener.assertNoErrors();
   }
 
@@ skipping 15446 matching lines @@
 
   void _resolveTestUnit(String code) {
     testCode = code;
     testSource = addSource(testCode);
     LibraryElement library = resolve2(testSource);
     assertNoErrors(testSource);
     verify([testSource]);
     testUnit = resolveCompilationUnit(testSource, library);
   }
 }