Revert "Update and improve compiler-rt tests for -mllvm...
Revert "Update and improve compiler-rt tests for -mllvm -asan_use_after_return=(never|[runtime]|always)."
Reverts commits of D103304, it breaks Darwin.
This reverts commit 60e5243e.
This reverts commit 26b3ea22.
This reverts commit 17600ec3.