Create separate scopes for constructors, setters, and other members.

pkg/front_end/lib/src/fasta/builder/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.builder;
 
 import '../errors.dart' show internalError;
 
 export 'class_builder.dart' show ClassBuilder;
 
@@ skipping 28 matching lines @@
 export '../source/unhandled_listener.dart' show Unhandled;
 
 export 'member_builder.dart' show MemberBuilder;
 
 export 'modifier_builder.dart' show ModifierBuilder;
 
 export 'prefix_builder.dart' show PrefixBuilder;
 
 export 'invalid_type_builder.dart' show InvalidTypeBuilder;
 
-export 'mixed_accessor.dart' show MixedAccessor;
-
-export '../scope.dart' show AccessErrorBuilder, Scope;
+export '../scope.dart' show AccessErrorBuilder, Scope, ScopeBuilder;
 
 export 'builtin_type_builder.dart' show BuiltinTypeBuilder;
 
 export 'dynamic_type_builder.dart' show DynamicTypeBuilder;
 
 export 'void_type_builder.dart' show VoidTypeBuilder;
 
 export 'function_type_builder.dart' show FunctionTypeBuilder;
 
 import 'library_builder.dart' show LibraryBuilder;
@@ skipping 66 matching lines @@
 
   Uri computeLibraryUri() {
     Builder builder = this;
     do {
       if (builder is LibraryBuilder) return builder.uri;
       builder = builder.parent;
     } while (builder != null);
     return internalError("No library parent.");
   }
 }