Generalize DeclarationBuilder.resolveTypes.

pkg/front_end/lib/src/fasta/source/outline_builder.dart

 // Copyright (c) 2016, 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 fasta.outline_builder;
 
 import 'package:kernel/ast.dart' show
     AsyncMarker,
     ProcedureKind;
 
@@ skipping 482 matching lines @@
       Token start, Token periodBeforeName, Token endToken) {
     debugEvent("ConstructorReference");
     String suffix = popIfNotNull(periodBeforeName);
     List<TypeBuilder> typeArguments = pop();
     String name = pop();
     push(library.addConstructorReference(
             name, typeArguments, suffix, start.charOffset));
   }
 
   @override
+  void beginFactoryMethod(Token token) {
+    library.beginNestedDeclaration(null, hasMembers: false);
+  }
+
+  @override
   void endFactoryMethod(Token beginToken, Token endToken) {
     debugEvent("FactoryMethod");
     MethodBody kind = pop();
     ConstructorReferenceBuilder redirectionTarget;
     if (kind == MethodBody.RedirectingFactoryBody) {
       redirectionTarget = pop();
     }
     AsyncMarker asyncModifier = pop();
     List<FormalParameterBuilder> formals = pop();
     var name = pop();
@@ skipping 72 matching lines @@
   Link<Token> handleMemberName(Link<Token> identifiers) {
     if (!isDartLibrary || identifiers.isEmpty) return identifiers;
     return removeNativeClause(identifiers);
   }
 
   @override
   void debugEvent(String name) {
     // printEvent(name);
   }
 }