Format all tests.

tests/corelib_strong/list_set_all_test.dart

Index: tests/corelib_strong/list_set_all_test.dart
diff --git a/tests/corelib_strong/list_set_all_test.dart b/tests/corelib_strong/list_set_all_test.dart
index 7214952ddf523d861b2665062c2472a35b678e80..a482ed6840aa68a830cf9370379bb3baece7d8e5 100644
--- a/tests/corelib_strong/list_set_all_test.dart
+++ b/tests/corelib_strong/list_set_all_test.dart
@@ -25,9 +25,15 @@ class MyList extends ListBase {
   List list;
   MyList(this.list);
   get length => list.length;
-  set length(value) { list.length = value; }
+  set length(value) {
+    list.length = value;
+  }
+
   operator [](index) => list[index];
-  operator []=(index, val) { list[index] = val; }
+  operator []=(index, val) {
+    list[index] = val;
+  }
+
   toString() => list.toString();
 }