Allow VM precompiled to pass trailing-comma test.

tests/language/arg_param_trailing_comma_test.dart

Index: tests/language/arg_param_trailing_comma_test.dart
diff --git a/tests/language/arg_param_trailing_comma_test.dart b/tests/language/arg_param_trailing_comma_test.dart
index 4c28888dd010a6608b32a61b900192cb79d2f057..4b87b1a56ff038434f17c459dbc4f413cd7ab261 100644
--- a/tests/language/arg_param_trailing_comma_test.dart
+++ b/tests/language/arg_param_trailing_comma_test.dart
@@ -75,9 +75,7 @@ class C {
   operator []=(x, y, ) {}                             /// none: continued
 }
 
-main(
-    args,                                             /// main_with_trailing

[Lasse Reichstein Nielsen, 2016/07/05 08:19:09]

It's not an important test, mainly a curiosity, so I think it's safer to just
drop the argument. It's not worth the complication.

-    ) {
+main() {
   testCalls();                                        /// none: continued
   // Make sure the Bad class is checked.
   new Bad().method();