Re: [PATCH 0/1] MR349: vkd3d-shader/spirv: Ensure that all instructions belong to a block.

[Conor McCarthy (＠cmccarthy)]

> I thought that skipped blocks, being unreachable, were exempted from structure rules

`OpUnreachable` instead of `OpBranch` should fix that.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/349#note_45859