[coop handles] Don't scan null object references
authorAleksey Kliger <aleksey@xamarin.com>
Fri, 21 Oct 2016 15:00:04 +0000 (11:00 -0400)
committerAleksey Kliger (λgeek) <akliger@gmail.com>
Thu, 27 Oct 2016 20:12:28 +0000 (16:12 -0400)
commita81db01598e2431bb3210480719873228a3f8617
tree5842df12c74e14c4eed46a7be4e4bcee2f045c3c
parent86c24e94279f56d0426924fbb533f14d2c9b41a0
[coop handles] Don't scan null object references

Fixes https://bugzilla.xamarin.com/show_bug.cgi?id=45223
mono/metadata/handle.c