Format all tests.

tests/language/vm/type_propagation_test.dart

Index: tests/language/vm/type_propagation_test.dart
diff --git a/tests/language/vm/type_propagation_test.dart b/tests/language/vm/type_propagation_test.dart
index e42aca24afdeb8a18f4495b25ab0c3bc93b16e59..6347f349d21e2a962c60990e91ccd0ffb58cbec2 100644
--- a/tests/language/vm/type_propagation_test.dart
+++ b/tests/language/vm/type_propagation_test.dart
@@ -28,7 +28,9 @@ foo(x) {
   }
 }
 
-class Y { var f = null; }
+class Y {
+  var f = null;
+}
 
 bar(y) {
   var x = y.f;
@@ -39,8 +41,7 @@ bar(y) {
   }
 }
 
-
-main () {
+main() {
   var o = new Y();
   o.f = new C();
   bar(o);