[llvm] [Github][Bazel] Add Workflow to Run Bazel Build (PR #165071)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

Only doing a couple of the core projects now to limit what we build before we setup caching. Building lldb is also failing on a missing `editline.h` header that doesn't resolve when installing a package that populates `/usr/include/editline.h` likely because of the bazel sandbox.

https://github.com/llvm/llvm-project/pull/165071