[PATCH] [lsan] Make LSan ignore memory poisoned by ASan.

[Sergey Matveev]

  > Try config.unsupported = True.

  What would that achieve? That's for tests which are not supported in the current environment, which is different from our use case.

http://llvm-reviews.chandlerc.com/D2359

BRANCH
  feat/is_poisoned

ARCANIST PROJECT
  compiler-rt