Update MonoProxy bits to mono@f8d27a4847d9e28f707d6fd9bdf117fcdcc5f33d

[radical]

The last update of the proxy was in May:

commit 22522a0d78077cefbf86728534a564f2dc6edbd4
Author: Pranav K <prkrishn@hotmail.com>
Date:   Mon May 11 10:40:12 2020 -0700

    Update to mono sources http://github.com/mono/mono/commit/57dcba253 (#21700)

This brings it up to mono/master.

[pranavkm]

@captainsafia, all yours

[captainsafia]

Thanks for submitting this, @radical!

Changing the target branch for this to the preview8 release branch. Might as well get these changes out early to catch any regressions in validation.

[radical]

This is the corresponding runtime PR - dotnet/runtime#39663 .

[lewing]

@radical @captainsafia make sure the branches are in sync, targeting p8 for this only makes sense if dotnet/runtime p8 matches

[radical]

I missed some changes, I'm going to try it out, and then push again.

[radical]

This update enables property getters on objects, among other things:

[captainsafia]

@radical @lewing I assume these bits will be included in the MonoProxy package? If so, we might want to abandon this PR in favor of consuming the package directly in preview8.

[lewing]

Yes, I don't want to merge this but it is helpful to keep it open for tracking purposes

[captainsafia]

Yes, I don't want to merge this but it is helpful to keep it open for tracking purposes

ACK. Sounds good!