Move getters from Options to Platform

pkg/scheduled_test/test/metatest.dart

Index: pkg/scheduled_test/test/metatest.dart
diff --git a/pkg/scheduled_test/test/metatest.dart b/pkg/scheduled_test/test/metatest.dart
index 71ad421fd9165c9adb29c5d598e2b37f84633103..9bbd2e401a4b619a33eca40e0a8f60511c729c03 100644
--- a/pkg/scheduled_test/test/metatest.dart
+++ b/pkg/scheduled_test/test/metatest.dart
@@ -133,9 +133,9 @@ Future<bool> get _inChildIsolate {
 /// describing the results of that test run.
 Future<Map> _runInIsolate(String description) {
   // TODO(nweiz): Don't use path here once issue 8440 is fixed.
-  var future = spawnUri(path.join(path.current, new Options().script)).call({
+  var future = spawnUri(path.join(path.current, Platform.script)).call({
     'testToRun': description,
-    'executable': new Options().executable
+    'executable': Platform.executable
   });
   // TODO(nweiz): Remove this timeout once issue 8417 is fixed and we can
   // capture top-level exceptions.