Format all tests.

tests/compiler/dart2js_native/subclassing_4_test.dart

Index: tests/compiler/dart2js_native/subclassing_4_test.dart
diff --git a/tests/compiler/dart2js_native/subclassing_4_test.dart b/tests/compiler/dart2js_native/subclassing_4_test.dart
index a2841582a1046dbd3dfff481265c06386ae0ae34..b1bf47092b028242e032ccced5787d59e40f6edc 100644
--- a/tests/compiler/dart2js_native/subclassing_4_test.dart
+++ b/tests/compiler/dart2js_native/subclassing_4_test.dart
@@ -27,10 +27,10 @@ class B extends A with M {
   callMiz() => this.miz();
 }
 
-B makeB() native ;
+B makeB() native;
 
 @Creates('=Object')
-getBPrototype() native ;
+getBPrototype() native;
 
 void setup() native r"""
 function B() {}