[compiler-rt] [compiler-rt][rtsan] Introduce first end to end RTsan lit tests, enable instrumented unit tests (PR #105732)

[Chris Apple via llvm-commits]

cjappl wrote:

I am in the process of reverting this test for the time being to buy myself time to investigate further, will update this comment with the reverted commit

https://github.com/llvm/llvm-project/pull/105732