Bug#1026810: Bring back "lit" tool

[Thomas Viehmann]

Package: llvm-toolchain-15

Hi,

thank you for packaging LLVM!

Back in the day (2016), the LLVM tool LIT (LLVM Integrated Testing) was 
deemed internal and removed from the binary packages (interestingly, the 
man-page stayed).
It turns out that people/projects use lit, for example OpenAI Triton[1], 
and currently this does not work with the Debian LLVM.
Would it be possible to bring it back?

Best regards

Thomas


1. https://github.com/openai/triton/