Remove ResolutionEnqueuer.isLive

sdk/lib/_internal/compiler/implementation/resolution/members.dart

 // Copyright (c) 2012, 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.
 
 part of resolution;
 
 abstract class TreeElements {
   AnalyzableElement get analyzedElement;
   Iterable<Node> get superUses;
 
@@ skipping 3182 matching lines @@
       registry.registerThrowNoSuchMethod();
     }
 
     // Register a post process to check for cycles in the redirection chain and
     // set the actual generative constructor at the end of the chain.
     addDeferredAction(constructor, () {
       compiler.resolver.resolveRedirectionChain(constructor, node);
     });
 
     registry.registerStaticUse(redirectionTarget);
+    // TODO(johnniwinther): Register the effective target type instead.
     registry.registerInstantiatedClass(
         redirectionTarget.enclosingClass.declaration);
     if (isSymbolConstructor) {
       registry.registerSymbolConstructor();
     }
   }
 
   visitThrow(Throw node) {
     registry.registerThrowExpression();
     visit(node.expression);
@@ skipping 77 matching lines @@
 
     // [constructor] might be the implementation element
     // and only declaration elements may be registered.
     registry.registerStaticUse(constructor.declaration);
     ClassElement cls = constructor.enclosingClass;
     InterfaceType type = registry.getType(node);
     if (node.isConst && type.containsTypeVariables) {
       compiler.reportError(node.send.selector,
                            MessageKind.TYPE_VARIABLE_IN_CONSTANT);
     }
+    // TODO(johniwinther): Avoid registration of `type` in face of redirecting
+    // factory constructors.
     registry.registerInstantiatedType(type);
     if (constructor.isFactoryConstructor && !type.typeArguments.isEmpty) {
       registry.registerFactoryWithTypeArguments();
     }
     if (constructor.isGenerativeConstructor && cls.isAbstract) {
       warning(node, MessageKind.ABSTRACT_CLASS_INSTANTIATION);
       registry.registerAbstractClassInstantiation();
     }
 
     if (isSymbolConstructor) {
@@ skipping 1655 matching lines @@
 }
 
 /// The result for the resolution of the `assert` method.
 class AssertResult implements ResolutionResult {
   const AssertResult();
 
   Element get element => null;
 
   String toString() => 'AssertResult()';
 }