am 83b47ccb: bionic: add tests for sem_post() and static C++ destruction on dlclose().

Merge commit '83b47ccbc4066ef19f5d95261d8a892567a7f0a7'

* commit '83b47ccbc4066ef19f5d95261d8a892567a7f0a7':
  bionic: add tests for sem_post() and static C++ destruction on dlclose().