[clang] [llvm] Reland "[ORC] Track __emutls_t definitions in IRMaterializationUnit" (#207161) (PR #208413)

[Vrukesh Panse via cfe-commits]

vrukesh wrote:

@lhames 

To see the error mention by @pawosm-arm , you can check logs in any recent run of Github action: https://github.com/arm/arm-toolchain/actions/runs/29231619440/job/86756897893

https://github.com/llvm/llvm-project/pull/208413