Format all tests.

tests/standalone/io/file_write_as_test.dart

Index: tests/standalone/io/file_write_as_test.dart
diff --git a/tests/standalone/io/file_write_as_test.dart b/tests/standalone/io/file_write_as_test.dart
index a5fb96b1d83ccf86374905de6e90811cd4bfb493..efbe0a74f4dde97cf2ebcf0310b59b4ca5b14be0 100644
--- a/tests/standalone/io/file_write_as_test.dart
+++ b/tests/standalone/io/file_write_as_test.dart
@@ -31,7 +31,7 @@ Future testWriteAsBytes(dir) {
   var completer = new Completer();
   var f = new File('${dir.path}/bytes.txt');
   var data = [50, 50, 50];
-  f.writeAsBytes(data).then((file){
+  f.writeAsBytes(data).then((file) {
     Expect.equals(f, file);
     f.readAsBytes().then((bytes) {
       Expect.listEquals(data, bytes);
@@ -52,7 +52,7 @@ Future testWriteAsString(dir) {
   var completer = new Completer();
   var f = new File('${dir.path}/strings.txt');
   var data = 'asdf';
-  f.writeAsString(data).then((file){
+  f.writeAsString(data).then((file) {
     Expect.equals(f, file);
     f.readAsString().then((str) {
       Expect.equals(data, str);