[clang] [llvm] [clang-repl] Add CLANG_ENABLE_EMUTLS_GET_ADDRESS cmake option (PR #217700)

[Pranav Kant via llvm-commits]

pranavk wrote:

> I don't see the logs because they have been removed by the new run. What is "Windows" here (i.e. what environment)? MinGW? MSVC? Cygwin? Something else?

It's MSVC afaics that we are using in PR checkers.

https://github.com/llvm/llvm-project/pull/217700