Move remaining functionality from ClassWorld to ClosedWorld

tests/compiler/dart2js/patch_test.dart

Index: tests/compiler/dart2js/patch_test.dart
diff --git a/tests/compiler/dart2js/patch_test.dart b/tests/compiler/dart2js/patch_test.dart
index 3990949491f2eb3937c039a04e434bbd981ece0d..f12c2b2293f68ef3b7603f99a1c346e65e22cd66 100644
--- a/tests/compiler/dart2js/patch_test.dart
+++ b/tests/compiler/dart2js/patch_test.dart
@@ -942,7 +942,7 @@ Future testPatchAndSelector() async {
   TypeMask typeMask = new TypeMask.exact(cls, world);
   FunctionElement method = cls.implementation.lookupLocalMember('method');
   method.computeType(compiler.resolution);
-  Expect.isTrue(selector.applies(method, world.backend));
+  Expect.isTrue(selector.applies(method));
   Expect.isTrue(typeMask.canHit(method, selector, world));
 
   // Check that the declaration method in the declaration class is a target
@@ -952,7 +952,7 @@ Future testPatchAndSelector() async {
   typeMask = new TypeMask.exact(cls, world);
   method = cls.lookupLocalMember('clear');
   method.computeType(compiler.resolution);
-  Expect.isTrue(selector.applies(method, world.backend));
+  Expect.isTrue(selector.applies(method));
   Expect.isTrue(typeMask.canHit(method, selector, world));
 
   // Check that the declaration method in the declaration class is a target
@@ -960,7 +960,7 @@ Future testPatchAndSelector() async {
   cls = ensure(compiler, "B", compiler.commonElements.coreLibrary.find);
   cls.ensureResolved(compiler.resolution);
   typeMask = new TypeMask.exact(cls, world);
-  Expect.isTrue(selector.applies(method, world.backend));
+  Expect.isTrue(selector.applies(method));
   Expect.isTrue(typeMask.canHit(method, selector, world));
 }