Seg fault upon accessing `Module.name`

[matthewseaman]

Attempting to access module.name on a Module causes a EXC BAD ACCESS.

[matthewseaman]

This just seems to be because of nil being passed in as the UnsafeMutablePointer count parameter of LLVMGetModuleIdentifier. I can tackle this one.

[matthewseaman]

@CodaFi I have a fix on a local branch. I can create a PR if you add me as a contributer.

[Azoy]

You shouldn't need any special permissions to submit a PR, so you should be good to go.