Remove Compiler access from ResolutionEnqueuer

tests/compiler/dart2js/union_type_test.dart

Index: tests/compiler/dart2js/union_type_test.dart
diff --git a/tests/compiler/dart2js/union_type_test.dart b/tests/compiler/dart2js/union_type_test.dart
index 336ce10fea41fc6b03a9872f8f86590eeeeed524..65e6da6e3140a466a54b860772bd7da139b27559 100644
--- a/tests/compiler/dart2js/union_type_test.dart
+++ b/tests/compiler/dart2js/union_type_test.dart
@@ -22,7 +22,8 @@ main() {
       }
       """,
         useMockCompiler: false);
-    ClosedWorld world = env.compiler.openWorld.closeWorld();
+    ClosedWorld world =
+        env.compiler.openWorld.closeWorld(env.compiler.reporter);
     FlatTypeMask mask1 = new FlatTypeMask.exact(env.getElement('A'));
     FlatTypeMask mask2 = new FlatTypeMask.exact(env.getElement('B'));
     UnionTypeMask union1 = mask1.nonNullable().union(mask2, world);