Introduce ["all"] scope for nogo

[fmeum]

What type of PR is this?

Feature

What does this PR do? Why is it needed?

Which issues(s) does this PR fix?

Work towards #4241

Other notes for review

[fmeum]

@fionera Could you give this a try as well? I'm not sure how usable it is though, the first nogo finding is:

nogo: errors found by nogo during build-time code analysis:
external/gazelle~~go_deps~org_golang_x_sys/unix/syscall_darwin.go:584:19: declaration of "err" shadows declaration at line 578 (shadow)
external/gazelle~~go_deps~org_golang_x_sys/unix/syscall_darwin.go:593:19: declaration of "err" shadows declaration at line 578 (shadow)
external/gazelle~~go_deps~org_golang_x_sys/unix/syscall_unix.go:117:28: possible misuse of unsafe.Pointer (unsafeptr)
external/gazelle~~go_deps~org_golang_x_sys/unix/syscall_unix.go:159:9: possible misuse of unsafe.Pointer (unsafeptr)
external/gazelle~~go_deps~org_golang_x_sys/unix/sysvshm_unix.go:32:28: possible misuse of unsafe.Pointer (unsafeptr)

How are you dealing with this amount of warnings in basic deps?

[fionera]

@fmeum Works fine, except that our excludes are not working anymore and I only just noticed. 😄 Because of the new naming of bzlmod didn't appear as issue before this patch. Since you asked how we are dealing with them, we have a fairly big exception list https://github.com/monogon-dev/monogon/blob/main/build/analysis/BUILD.bazel Is there motivation to replace the bzlmod repo name with the actual go dependency name for these? Or is that not really possible because of the way the excludes work?

[fmeum]

Have you tried the excludes attribute of the nogo tag? It accepts labels, not paths, and should this work with Bzlmod.

[fionera]

That would exclude them completely. I only want to exclude them from specific nogo analyzers.