rust/Cargo.toml

typing: add type hints to mpatch implementations

Again, using `merge-pyi` to apply the stubs in cext and then manually type the
private methods.  The generated stub without these hints inferred very little,
and the stuff it did was wrong.

[workspace]
members = ["hg-core", "hg-cpython", "rhg"]
exclude = ["chg", "hgcli"]