We implemented --dump-skp-on-shader-compilation for customer: dream. Once they stop using it, we should remove it from our codebase, because as implemented it is essentially unusable. There's no documentation, and it is entirely unintuitive how to actually obtain the files to which it refers.

We may in due course want to create other mechanisms e.g. to save the SKPs for expensive frames from the DevTools, or similar, but that is a separate issue.