[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Fix Metal window crash on resize. (#453)

[Ronie Salgado]

This fixes an edge condition with the metal renderer where the update rect ends out of the bounds of the display texture. The texture update region ends with negative coordinates.
You can view, comment on, or merge this pull request online at:

  https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/453

-- Commit Summary --

  * This fixed an edge condition with the metal renderer where the update rect ends out of the bounds of the display texture.

-- File Changes --

    M platforms/iOS/vm/OSX/sqSqueakOSXMetalView.m (10)

-- Patch Links --

https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/453.patch
https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/453.diff

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https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/453
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