[OPENMP51]Initial support for the use clause.

Added basic parsing/sema/serialization support for the 'use' clause.

Differential Revision: https://reviews.llvm.org/D98815

GitOrigin-RevId: c615927c8e38d8608d7b5fa294a25dc44df0eb68
diff --git a/lib/Semantics/check-omp-structure.cpp b/lib/Semantics/check-omp-structure.cpp
index 6ebd580..269e649 100644
--- a/lib/Semantics/check-omp-structure.cpp
+++ b/lib/Semantics/check-omp-structure.cpp
@@ -718,6 +718,7 @@
 CHECK_SIMPLE_CLAUSE(UseDeviceAddr, OMPC_use_device_addr)
 CHECK_SIMPLE_CLAUSE(Write, OMPC_write)
 CHECK_SIMPLE_CLAUSE(Init, OMPC_init)
+CHECK_SIMPLE_CLAUSE(Use, OMPC_use)
 
 CHECK_REQ_SCALAR_INT_CLAUSE(Allocator, OMPC_allocator)
 CHECK_REQ_SCALAR_INT_CLAUSE(Grainsize, OMPC_grainsize)