[PATCH] D71431: Call objc_retainBlock before passing a block as a variadic argument

[John McCall via Phabricator via cfe-commits]

rjmccall added a comment.

Patch looks good, but could you describe this behavior in the ARC documentation?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71431/new/

https://reviews.llvm.org/D71431