Improvements to the LLDB AArch46 Linux buildbot

I said this in

Linaro runs LLDB buildbots for AArch64 but these do not cover the following architecture extensions at this time:

  • Memory Tagging
  • Pointer Authentication
  • Scalable Vector
  • Scalable Vector 2

So I am happy to let you all know that the lldb-aarch64-ubuntu bot is now running on new hardware that has the Scalable Vector and Pointer Authentication extensions.

So tests for those are now being run regularly. If you have problems with these, as usual, tag myself or @omjavaid .

This also means that Mac/iOS pointer authentication features could potentially be tested upstream with a Linux based test case. Again, happy to help there.