Publish `rustc-demangle-capi` on crates.io

[maurer]

Right now, rustc-demangle-capi only exists as a subdirectory of this repository. In Android, we've been using crates.io as our primary source of third party packages, and it would be nice for rustc-demangle to not be an exception.

I could upload it myself, but I figured that Crichton should probably own the package.

For other users, making this crate available would also make it easier to pull into their builds, whether through a rules_rust style build in Bazel or by invoking cargo to build the .a or .so they need from crates.io or a cargo vendor directory. It also makes sense given rust-lang/rfcs#3028 which makes these possibly useful artifacts to a Cargo build.

[alexcrichton]

Sure thing! Published now

[krtab]

Hi!

I am a bit confused with regards to two points:

1. What does this change add/provides?
2. What is now the preferred way to package the C API of rustc-demangle? I'm packaging it for the AUR and I'm not sure whether or not I should switch to this new crate.

Thanks

[alexcrichton]

This published the crate on crates.io. You can use it if you'd like, you also don't have to use it. I don't know enough about packaging to advise how to package this.

[krtab]

Thanks for the answer. :)