Format all tests.

tests/language/await_for_cancel_test.dart

Index: tests/language/await_for_cancel_test.dart
diff --git a/tests/language/await_for_cancel_test.dart b/tests/language/await_for_cancel_test.dart
index 1374f4b22357d7d73177db63864a0b33f5600352..c308b4f5e23fe8e5f839978691ab30f13e9baf44 100644
--- a/tests/language/await_for_cancel_test.dart
+++ b/tests/language/await_for_cancel_test.dart
@@ -12,7 +12,8 @@ test1() async {
   canceled = false;
   try {
     StreamController controller = infiniteStreamController();
-    outer: while(true) {
+    outer:
+    while (true) {
       await for (var x in controller.stream) {
         for (int j = 0; j < 10; j++) {
           if (j == 5) break outer;
@@ -29,7 +30,8 @@ test2() async {
   try {
     StreamController controller = infiniteStreamController();
     bool first = true;
-    outer: while(true) {
+    outer:
+    while (true) {
       if (first) {
         first = false;
       } else {
@@ -58,7 +60,6 @@ main() {
   });
 }
 
-
 // Create a stream that produces numbers [1, 2, ... ]
 StreamController infiniteStreamController() {
   StreamController controller;