Fix Segmentation fault at TestArray#test_aref
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37828 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix Segmentation fault at TestArray#test_aref
on x64 mingw. Variable argument of rb_scan_args() should be a pointer
(VALUE *), but 0 of variable argument seems not equal to null pointer
on x64 mingw.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37828 b2dd03c8-39d4-4d8f-98ff-823fe69b080e