dart2js: run dartfmt on tests

tests/compiler/dart2js_native/native_mixin_multiple2_test.dart

Index: tests/compiler/dart2js_native/native_mixin_multiple2_test.dart
diff --git a/tests/compiler/dart2js_native/native_mixin_multiple2_test.dart b/tests/compiler/dart2js_native/native_mixin_multiple2_test.dart
index f59d2e151089ebef3f024c22a772577f016893a3..e3196e17e2b19c6088847472b9a771543023cd1a 100644
--- a/tests/compiler/dart2js_native/native_mixin_multiple2_test.dart
+++ b/tests/compiler/dart2js_native/native_mixin_multiple2_test.dart
@@ -13,8 +13,7 @@ class A {
 }
 
 @Native("B")
-class B extends A with M1, M2, M3 {
-}
+class B extends A with M1, M2, M3 {}
 
 class M1 {}
 
@@ -26,7 +25,7 @@ class M2 {
 
 class M3 {}
 
-makeB() native;
+makeB() native ;
 
 void setup() native """
 function B() {}
@@ -37,9 +36,9 @@ main() {
   setup();
 
   B b = makeB();
-  Expect.equals('1;2', b.foo(1,2));
+  Expect.equals('1;2', b.foo(1, 2));
   Expect.equals('2;null', b.foo(2));
   Expect.equals('P 3', b.plain(3));
-  Expect.equals('100,4', b.bar(4,100));
+  Expect.equals('100,4', b.bar(4, 100));
   Expect.equals('null,5', b.bar(5));
 }