[Bug boehm-gc/66848] boehm-gc fails test suite on x86_64-apple-darwin15

[howarth.at.gcc at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66848

--- Comment #6 from Jack Howarth <howarth.at.gcc at gmail dot com> ---
Created attachment 35959
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35959&action=edit
bzip2 compressed log of thread_leak_test walk in lldb from main