Format all multitests

tests/language/mixin_supertype_subclass4_test.dart

Index: tests/language/mixin_supertype_subclass4_test.dart
diff --git a/tests/language/mixin_supertype_subclass4_test.dart b/tests/language/mixin_supertype_subclass4_test.dart
index 56fcf7f588a610678f0148eb270e3b86938822a9..82770d3925ac010b23880a437cbdff57ed552a26 100644
--- a/tests/language/mixin_supertype_subclass4_test.dart
+++ b/tests/language/mixin_supertype_subclass4_test.dart
@@ -17,19 +17,26 @@
 // a warning.
 
 class B {}
+
 class C {}
+
 class D {}
+
 class E extends B with C implements D {}
+
 class F extends E {}
+
 class G {}
+
 class A = E with M;
+
 class M
   extends B with G //# 01: static type warning
   extends C with G //# 02: static type warning
   extends D with G //# 03: static type warning
   extends E with G //# 04: static type warning
   extends F with G //# 05: static type warning
-  {}
+{}
 
 main() {
   new A();