Skip constructors from ElementEnvironment.forEachClassMember

pkg/compiler/lib/src/resolution/resolution_strategy.dart

 // Copyright (c) 2017, 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 dart2js.resolution_strategy;
 
 import '../common.dart';
 import '../common_elements.dart';
 import '../common/backend_api.dart';
 import '../common/names.dart';
@@ skipping 292 matching lines @@
     return constructor?.declaration;
   }
 
   @override
   void forEachClassMember(
       ClassElement cls, void f(ClassElement declarer, MemberElement member)) {
     cls.ensureResolved(_resolution);
     cls.forEachMember((ClassElement declarer, MemberElement member) {
       if (member.isSynthesized) return;
       if (member.isMalformed) return;
+      if (member.isConstructor) return;
       f(declarer, member);
     }, includeSuperAndInjectedMembers: true);
   }
 
   @override
   ClassEntity getSuperClass(ClassElement cls,
       {bool skipUnnamedMixinApplications: false}) {
     cls.ensureResolved(_resolution);
     ClassElement superclass = cls.superclass;
     if (skipUnnamedMixinApplications) {
@@ skipping 339 matching lines @@
   @override
   WorkItem createWorkItem(MemberElement element) {
     assert(invariant(element, element.isDeclaration));
     if (element.isMalformed) return null;
 
     assert(invariant(element, element is AnalyzableElement,
         message: 'Element $element is not analyzable.'));
     return _resolution.createWorkItem(element);
   }
 }