Rename Enqueuer.universe to worldBuilder.

tests/compiler/dart2js/assert_message_throw_test.dart

Index: tests/compiler/dart2js/assert_message_throw_test.dart
diff --git a/tests/compiler/dart2js/assert_message_throw_test.dart b/tests/compiler/dart2js/assert_message_throw_test.dart
index 898e3aa2014046d6b619da7011cc11fdcdb3b2ef..a87623235a9996965d2d50c1c1a6f58d53e92556 100644
--- a/tests/compiler/dart2js/assert_message_throw_test.dart
+++ b/tests/compiler/dart2js/assert_message_throw_test.dart
@@ -59,7 +59,8 @@ main() {
         memorySourceFiles: {'main.dart': SOURCE},
         options: [Flags.enableCheckedMode, Flags.enableAssertMessage]);
     Compiler compiler = result.compiler;
-    ClosedWorld closedWorld = compiler.resolverWorld.closedWorldForTesting;
+    ClosedWorld closedWorld =
+        compiler.resolutionWorldBuilder.closedWorldForTesting;
 
     void check(String methodName, TypeMask expectedReturnType) {
       Element element = compiler.mainApp.find(methodName);