Format all tests.

tests/lib/async/catch_errors18_test.dart

Index: tests/lib/async/catch_errors18_test.dart
diff --git a/tests/lib/async/catch_errors18_test.dart b/tests/lib/async/catch_errors18_test.dart
index a2751768145cf202846f617e04b077d84d413701..2e640137335d07e013432ba49c84ec986370c535 100644
--- a/tests/lib/async/catch_errors18_test.dart
+++ b/tests/lib/async/catch_errors18_test.dart
@@ -12,8 +12,8 @@ main() {
   Completer done = new Completer();
 
   var events = [];
-  Stream stream = new Stream.periodic(const Duration(milliseconds: 20),
-                                      (x) => x);
+  Stream stream =
+      new Stream.periodic(const Duration(milliseconds: 20), (x) => x);
   // Test that errors of periodic streams are caught.
   catchErrors(() {
     var subscription;
@@ -26,8 +26,11 @@ main() {
       }
       events.add(x);
     });
-  }).listen((x) { events.add("outer: $x"); },
-            onDone: () { Expect.fail("Unexpected callback"); });
+  }).listen((x) {
+    events.add("outer: $x");
+  }, onDone: () {
+    Expect.fail("Unexpected callback");
+  });
 
   done.future.whenComplete(() {
     // Give handlers time to run.