[llvm] Make Passes Required - func-properties-stats and instcount (PR #192130)

[Arthur Eubanks via llvm-commits]

aeubanks wrote:

> It would be good to have a test that these work on functions with `optnone`.

I thought about this, but I think long term it's not super useful to add a test for optnone every time we add `isRequired() { return true; }` to a pass we missed

https://github.com/llvm/llvm-project/pull/192130