New implementation of OpenMP 5.0 detached tasks.

Patch by Alex Duran

Differential Revision: https://reviews.llvm.org/D62485


git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@363799 91177308-0d34-0410-b5e6-96231b3b80d8
12 files changed