[LLVMdev] Flaky asan test?

[Sanjoy Das]

My change 225282 broke an asan test [1], but by the time I got around
to trying to revert it, I noticed that the test had started passing.
Moreover, it seems to have been "fixed" by 225291 which at least does
not seem related to the breakage directly.

I'm puzzled now -- is the failing asan test flaky?  Should I still
revert 225282?

Thank you for your time!

[1]: http://lab.llvm.org:8011/builders/libcxx-libcxxabi-x86_64-linux-ubuntu-asan/builds/98/steps/test.libcxx/logs/stdio

-- Sanjoy