very good new binary size improvement

[Noratrieb]

this significantly improves binary size, we need to merge this ASAP

[Noratrieb]

let me regress binary size to test this

[workingjubilee]

slightly concerned that this may not actually work unless the changeset is on master due to the jank way GHA works.

[Noratrieb]

ugh, it does! pull_request_target does that.

[Noratrieb]

i can open a new PR for just the first commit to merge

[workingjubilee]

yeah I am happy to optimistically merge that change.

[Noratrieb]

{"platform":"ubuntu-latest","reference":"350632","updated":"350632"}
{"platform":"windows-latest","reference":"135168","updated":"135168"}

either I'm bad at regressing binary size or getting it from stage0 doesn't quite work correctly and we really do need stage0-sysroot instead. I'm not very sure about that, who gets what from where when.

[workingjubilee]

@Kobzol whoops.

[Kobzol]

I think that we need to use stage0-sysroot (but first, it needs to be fixed). stage0-sysroot isn't actually used almost anywhere, so that's probably the reason why this wasn't noticed.