Remove Compiler.openWorld

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

Index: pkg/compiler/lib/src/resolution/resolution.dart
diff --git a/pkg/compiler/lib/src/resolution/resolution.dart b/pkg/compiler/lib/src/resolution/resolution.dart
index d5334f179213953534d67b041af18e567709fd93..d7b28c2ddb3a6433ab03aa807d1cbbaef2545fe1 100644
--- a/pkg/compiler/lib/src/resolution/resolution.dart
+++ b/pkg/compiler/lib/src/resolution/resolution.dart
@@ -64,10 +64,9 @@ import 'typedefs.dart';
 class ResolverTask extends CompilerTask {
   final ConstantCompiler constantCompiler;
   final Resolution resolution;
-  final OpenWorld world;
 
   ResolverTask(
-      this.resolution, this.constantCompiler, this.world, Measurer measurer)
+      this.resolution, this.constantCompiler, Measurer measurer)
       : super(measurer);
 
   String get name => 'Resolver';
@@ -80,6 +79,7 @@ class ResolverTask extends CompilerTask {
   ParsingContext get parsingContext => resolution.parsingContext;
   CompilerOptions get options => resolution.options;
   ResolutionEnqueuer get enqueuer => resolution.enqueuer;
+  OpenWorld get world => enqueuer.universe.openWorld;
 
   ResolutionImpact resolve(Element element) {
     return measure(() {