Move POSIX specific test under test/libcxx subdirectory

llvm-svn: 302865

diff --git a/libcxx/test/std/thread/thread.condition/PR30202_notify_from_pthread_created_thread.pass.cpp b/libcxx/test/libcxx/thread/thread.condition/PR30202_notify_from_pthread_created_thread.pass.cpp
similarity index 100%
rename from libcxx/test/std/thread/thread.condition/PR30202_notify_from_pthread_created_thread.pass.cpp
rename to libcxx/test/libcxx/thread/thread.condition/PR30202_notify_from_pthread_created_thread.pass.cpp