Format all tests.

tests/compiler/dart2js_native/subclassing_type_test.dart

Index: tests/compiler/dart2js_native/subclassing_type_test.dart
diff --git a/tests/compiler/dart2js_native/subclassing_type_test.dart b/tests/compiler/dart2js_native/subclassing_type_test.dart
index 3ab4af9e3664a5583120ba754e3fc9d555650bb0..e27dc6339c55ed0558e94cd315e1427925c0c0ac 100644
--- a/tests/compiler/dart2js_native/subclassing_type_test.dart
+++ b/tests/compiler/dart2js_native/subclassing_type_test.dart
@@ -24,10 +24,10 @@ class C extends Object with M {
   // non-native mixin application.
 }
 
-B makeB() native ;
+B makeB() native;
 
 @Creates('=Object')
-getBPrototype() native ;
+getBPrototype() native;
 
 void setup() native r"""
 function B() {}