Format all tests.

tests/language/async_star_stream_take_test.dart

Index: tests/language/async_star_stream_take_test.dart
diff --git a/tests/language/async_star_stream_take_test.dart b/tests/language/async_star_stream_take_test.dart
index 095082b0a36bca0fda34f50b2a6a6bcce58da1d4..8fd3a770a9d9bf98aebc906de8d34e214fa50709 100644
--- a/tests/language/async_star_stream_take_test.dart
+++ b/tests/language/async_star_stream_take_test.dart
@@ -13,7 +13,7 @@ Stream makeStream(int n) async* {
 main() {
   f(Stream s) async {
     var r = 0;
-    await for(var v in s.take(5)) r += v;
+    await for (var v in s.take(5)) r += v;
     return r;
   }
 
@@ -23,4 +23,3 @@ main() {
     asyncEnd();
   });
 }
-