Bootstrapping Swift Compiler

[stevapple (YR Chen)]

Of course, and the community is actually moving toward that goal.

Libswift is enabled

With libswift it is possible to add SIL optimization passes written in Swift. It allows to gradually migrate the SIL optimizer from C++ to Swift. For details see libswift/README.md and the PR, which introduced the initial version. libswift is now enabled in the CI, which means it's now possible to contribute to libswift. If you have any questions, just let me know.

libswift is the first piece of Swift codes in the actual Swift compiler (frontend).