Fix for parsing named factory constructors with Fasta.

pkg/analyzer/test/generated/parser_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.parser_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
@@ skipping 1100 matching lines @@
     ConstructorDeclaration constructor = member as ConstructorDeclaration;
     NodeList<ConstructorInitializer> initializers = constructor.initializers;
     expect(initializers, hasLength(3));
     ConstructorInitializer initializer = initializers[1];
     expect(initializer, new isInstanceOf<AssertInitializer>());
     AssertInitializer assertInitializer = initializer;
     expect(assertInitializer.condition, isNotNull);
     expect(assertInitializer.message, isNull);
   }
 
+  void test_parseConstructor_factory_named() {
+    createParser('factory C.foo() => null;');
+    var constructor = parser.parseClassMember('C') as ConstructorDeclaration;
+    assertNoErrors();
+    expect(constructor, isNotNull);
+    expect(constructor.externalKeyword, isNull);
+    expect(constructor.constKeyword, isNull);
+    expect(constructor.factoryKeyword, isNotNull);
+    expect(constructor.returnType.name, 'C');
+    _assertIsDeclarationName(constructor.returnType, false);
+    expect(constructor.period.type, TokenType.PERIOD);
+    expect(constructor.name.name, 'foo');
+    _assertIsDeclarationName(constructor.name);
+    expect(constructor.parameters, isNotNull);
+    expect(constructor.parameters.parameters, isEmpty);
+    expect(constructor.separator, isNull);
+    expect(constructor.initializers, isEmpty);
+    expect(constructor.redirectedConstructor, isNull);
+    expect(constructor.body, new isInstanceOf<ExpressionFunctionBody>());
+  }
+
   void test_parseConstructor_initializers_field() {
     createParser('C(x, y) : _x = x, this._y = y;');
     ClassMember member = parser.parseClassMember('C');
     expect(member, isNotNull);
     assertNoErrors();
     expect(member, new isInstanceOf<ConstructorDeclaration>());
     ConstructorDeclaration constructor = member as ConstructorDeclaration;
     NodeList<ConstructorInitializer> initializers = constructor.initializers;
     expect(initializers, hasLength(2));
 
@@ skipping 13598 matching lines @@
     expectCommentText(typeVariable.documentationComment, '/// Doc');
   }
 
   /**
    * Assert that the given [name] is in declaration context.
    */
   void _assertIsDeclarationName(SimpleIdentifier name) {
     expect(name.inDeclarationContext(), isTrue);
   }
 }