[clang] [compiler-rt] [llvm] [TSan] Add escape analysis for redundant instrumentation elimination (PR #169896)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

@nikic As this looks like a generic thing and you had strong opinion on StackSafetyAnalisys :)

https://github.com/llvm/llvm-project/pull/169896