Implement library access restrictions and privacy.

pkg/front_end/lib/src/fasta/kernel/kernel_enum_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.kernel_enum_builder;
 
 import 'package:kernel/ast.dart'
     show
         Arguments,
         Class,
@@ skipping 224 matching lines @@
     valuesBuilder.initializer =
         new ListLiteral(values, typeArgument: cls.rawType, isConst: true);
     KernelConstructorBuilder constructorBuilder = constructorScopeBuilder[""];
     Constructor constructor = constructorBuilder.build(libraryBuilder);
     constructor.initializers.insert(
         0,
         new FieldInitializer(indexField,
             new VariableGet(constructor.function.positionalParameters.single))
           ..parent = constructor);
     KernelClassBuilder objectClass = objectType.builder;
-    MemberBuilder superConstructor =
-        objectClass.findConstructorOrFactory("", charOffset, fileUri);
+    MemberBuilder superConstructor = objectClass.findConstructorOrFactory(
+        "", charOffset, fileUri, libraryBuilder);
     if (superConstructor == null || !superConstructor.isConstructor) {
       // TODO(ahe): Ideally, we would also want to check that [Object]'s
       // unnamed constructor requires no arguments. But that information isn't
       // always available at this point, and it's not really a situation that
       // can happen unless you start modifying the SDK sources.
       addCompileTimeError(-1, "'Object' has no unnamed constructor.");
     } else {
       constructor.initializers.add(
           new SuperInitializer(superConstructor.target, new Arguments.empty())
             ..parent = constructor);
     }
     int index = 0;
     for (int i = 0; i < constantNamesAndOffsets.length; i += 2) {
       String constant = constantNamesAndOffsets[i];
       KernelFieldBuilder field = this[constant];
       field.build(libraryBuilder);
       Arguments arguments =
           new Arguments(<Expression>[new IntLiteral(index++)]);
       field.initializer =
           new ConstructorInvocation(constructor, arguments, isConst: true);
     }
     return super.build(libraryBuilder, coreLibrary);
   }
 
   @override
-  Builder findConstructorOrFactory(String name, int charOffset, Uri uri) {
+  Builder findConstructorOrFactory(
+      String name, int charOffset, Uri uri, LibraryBuilder library) {
     return null;
   }
 }