Allow native repo rule usage in module extension impl functions

[Wyverald]

Right now we can't use native repo rules in module extension impl functions. We should fix that.

Example:

def _impl(ctx):
  native.local_repository(name="foo", path="bar")
my_extension=module_extension(implementation=_impl)

[fmeum]

@Wyverald If it helps, I could starlarkify local_repository and new_local_repository. Now that repository_ctx.workspace_root is available, making fully-featured replacements should be possible.

Assuming that using bind in module extensions is a bad idea, this would cover all native rules. Maybe making native repo rules work in module extension wouldn't even be necessary anymore?

[fmeum]

Sorry, I have to take back what I said above: At least new_local_repository can't easily be starlarkified since it relies on creating Skyframe dependencies on local files and directories, while Starlark repository rules can only Skyframe-depend on labels.

[wondfor]

new_local_repository

when i use bazel test, i want deps some *.so， in /opt/buildtools/, special ,i run remotely with buildfarm, is there a example in bzlmod

[Wyverald]

Closing in favor of #18285