Format all tests.

tests/language/await_for_test.dart

Index: tests/language/await_for_test.dart
diff --git a/tests/language/await_for_test.dart b/tests/language/await_for_test.dart
index 2fff1bc140a7ccfe86d37eaa4c7d3043dab72c5a..9e97e98b4e6942b68b97ac81d2440295ec3e767e 100644
--- a/tests/language/await_for_test.dart
+++ b/tests/language/await_for_test.dart
@@ -12,15 +12,14 @@ class Trace {
   void record(x) {
     trace += x.toString();
   }
+
   String toString() => trace;
 }
 
-
 Stream makeMeAStream() {
   return timedCounter(5);
 }
 
-
 consumeOne(trace) async {
   // Equivalent to await for (x in makeMeAStream()) { ... }
   var s = makeMeAStream();
@@ -32,7 +31,6 @@ consumeOne(trace) async {
   trace.record("X");
 }
 
-
 consumeTwo(trace) async {
   await for (var x in makeMeAStream()) {
     trace.record(x);
@@ -40,7 +38,6 @@ consumeTwo(trace) async {
   trace.record("Y");
 }
 
-
 consumeNested(trace) async {
   await for (var x in makeMeAStream()) {
     trace.record(x);
@@ -76,7 +73,6 @@ Stream<int> errorOnCancelStream(int n) async* {
   }
 }
 
-
 // Sanity-check that the errorOnCancelStream behaves as expected.
 testErrorOnCancel() {
   var stream = errorOnCancelStream(0);