Use dev_me.py for shortfin integration tests

[renxida]

No description provided.

[ScottTodd]

Ideally integration tests would use built packages, so they can't assume anything about the source environment. Developer scripts could still be used for unit tests though.

[renxida]

oh good point. Will take the setup section and swap it into a unit test once done.

[ScottTodd]

IDK what you're doing with the git clone stuff, but I also want more workflows to just use the FetchContent code in CMake that downloads automatically. Developer flows and GitHub Actions should both be simple. Branchy bash scripts that peek at output from pip commands are not simple :P

dev_me.py appears to handle the automatic download case:

SHARK-Platform/shortfin/dev_me.py

Lines 29 to 31 in 778b567

	# By default, if there is an iree source dir adjacent to this parent repository,
	# that will be used (so you can just directly edit IREE runtime code and build.
	# Otherwise, the shortfin build will download a pinned IREE source tree.

[renxida]

just trying to not repeatedly download code - - i was also trying to make this integration test faster

[renxida]

(now that i look at it iree_repo_dir already seems to cache the iree repo for the unittests; might get that over so that shortfin build doesn't have to pull iree)

[renxida]

closing because didn't find the low hanging fruits i wanted to find : /