[OpenMP] support depend clause for taskwait directive, by Deepak
Eachempati.

This patch adds clang (parsing, sema, serialization, codegen) support for the 'depend' clause on the 'taskwait' directive.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D113540

GitOrigin-RevId: 80256605f8c6aab8cb33ac3a3784aacd005087a3
15 files changed