Allow arguments before and after block-formatted functions.

test/regression/0000/0050.stmt

Index: test/regression/0000/0050.stmt
diff --git a/test/regression/0000/0050.stmt b/test/regression/0000/0050.stmt
index d245e97a362550d92e9731febb4e9691d09a5265..4bb14492282564889f883b9640740e2a164b974f 100644
--- a/test/regression/0000/0050.stmt
+++ b/test/regression/0000/0050.stmt
@@ -9,10 +9,8 @@
       onDone: () { print('file is now closed'); },
       onError: (e) { print(e.toString()); });
 <<<
-  inputStream
-      .transform(UTF8.decoder)
-      .transform(new LineSplitter())
-      .listen((String line) {
+  inputStream.transform(UTF8.decoder).transform(new LineSplitter()).listen(
+      (String line) {
     print('Got ${line.length} characters from stream');
   }, onDone: () {
     print('file is now closed');