Format all tests.

tests/compiler/dart2js_native/native_mixin_field_test.dart

Index: tests/compiler/dart2js_native/native_mixin_field_test.dart
diff --git a/tests/compiler/dart2js_native/native_mixin_field_test.dart b/tests/compiler/dart2js_native/native_mixin_field_test.dart
index 5cf736be1d674e6d60e8f856eb9f9169696d01df..6ee2d2201f678d014e521c19f577e04066703893 100644
--- a/tests/compiler/dart2js_native/native_mixin_field_test.dart
+++ b/tests/compiler/dart2js_native/native_mixin_field_test.dart
@@ -26,8 +26,8 @@ class M2 {
   var buz;
 }
 
-A makeA() native ;
-B makeB() native ;
+A makeA() native;
+B makeB() native;
 
 void setup() native """
 function A() {this.foo='A-foo';}
@@ -39,7 +39,6 @@ self.nativeConstructor(A);
 self.nativeConstructor(B);
 """;
 
-
 main() {
   nativeTesting();
   setup();