Remove Compiler.openWorld

pkg/compiler/lib/src/compiler.dart

Index: pkg/compiler/lib/src/compiler.dart
diff --git a/pkg/compiler/lib/src/compiler.dart b/pkg/compiler/lib/src/compiler.dart
index 16ef47def239ff05060757451ce5cd778b56b6dd..662187d59810edaae4790acf5c61ce704296a454 100644
--- a/pkg/compiler/lib/src/compiler.dart
+++ b/pkg/compiler/lib/src/compiler.dart
@@ -324,7 +324,7 @@ abstract class Compiler implements LibraryLoaderListener {
   /// Override this to mock the resolver for testing.
   ResolverTask createResolverTask() {
     return new ResolverTask(
-        resolution, backend.constantCompilerTask, openWorld, measurer);
+        resolution, backend.constantCompilerTask, measurer);
   }
 
   // TODO(johnniwinther): Rename these appropriately when unification of worlds/
@@ -774,7 +774,7 @@ abstract class Compiler implements LibraryLoaderListener {
   void closeResolution() {
     phase = PHASE_DONE_RESOLVING;
 
-    openWorld.closeWorld(reporter);
+    resolverWorld.openWorld.closeWorld(reporter);
     // Compute whole-program-knowledge that the backend needs. (This might
     // require the information computed in [world.closeWorld].)
     backend.onResolutionComplete();
@@ -1983,7 +1983,7 @@ class CompilerResolution implements Resolution {
 
   @override
   void registerClass(ClassElement cls) {
-    _compiler.openWorld.registerClass(cls);
+    enqueuer.universe.openWorld.registerClass(cls);
   }
 
   @override