[OPENMP51]Initial support for the interop directive.

Added basic parsing/sema/serialization support for interop directive.
Support for the 'init' clause.

Differential Revision: https://reviews.llvm.org/D98558

GitOrigin-RevId: 410f09af09b9261f51663773bee01ec7b37e8fd4
diff --git a/lib/Semantics/check-omp-structure.cpp b/lib/Semantics/check-omp-structure.cpp
index baa31fd..6ebd580 100644
--- a/lib/Semantics/check-omp-structure.cpp
+++ b/lib/Semantics/check-omp-structure.cpp
@@ -717,6 +717,7 @@
 CHECK_SIMPLE_CLAUSE(Update, OMPC_update)
 CHECK_SIMPLE_CLAUSE(UseDeviceAddr, OMPC_use_device_addr)
 CHECK_SIMPLE_CLAUSE(Write, OMPC_write)
+CHECK_SIMPLE_CLAUSE(Init, OMPC_init)
 
 CHECK_REQ_SCALAR_INT_CLAUSE(Allocator, OMPC_allocator)
 CHECK_REQ_SCALAR_INT_CLAUSE(Grainsize, OMPC_grainsize)