[clang] [Fuchsia] Stack analysis flags for baremetal runtimes (PR #175677)

[Paul Kirth via cfe-commits]

https://github.com/ilovepi approved this pull request.

LGTM. Is there a reason we wouldn't do that for all the runtimes? I'd expect the metadata to be fairly small, and they're both a non-allocated sections, so I don't think there is a real concern over the size impact, since it would be stripped out for the release image. Also, we currently already always enable the stack-size-section in the Fuchsia build, so that flag in particular should be noncontroversial.

https://github.com/llvm/llvm-project/pull/175677