Format all tests.

tests/language/regress_21998_4_test.dart

Index: tests/language/regress_21998_4_test.dart
diff --git a/tests/language/regress_21998_4_test.dart b/tests/language/regress_21998_4_test.dart
index 7afe1ac2bf5ed121194982cf2c9bc21399783e1c..7f0435ebfb29681f07a74c01359157c342db2499 100644
--- a/tests/language/regress_21998_4_test.dart
+++ b/tests/language/regress_21998_4_test.dart
@@ -16,7 +16,7 @@ class C {
   max(a) => a;
 
   m() {
-    return max(Math.max(
-               lib3_max(0, lib2_max(1, 2)), lib1.max('a', 'b', 'cd').length));
+    return max(
+        Math.max(lib3_max(0, lib2_max(1, 2)), lib1.max('a', 'b', 'cd').length));
   }
-}
+}