[OPENMP] Initial support for 'in_reduction' clause.

Parsing/sema analysis for 'in_reduction' clause for task-based
directives.

llvm-svn: 308768
diff --git a/clang/lib/Basic/OpenMPKinds.cpp b/clang/lib/Basic/OpenMPKinds.cpp
index 050c0cc..5eea4b5 100644
--- a/clang/lib/Basic/OpenMPKinds.cpp
+++ b/clang/lib/Basic/OpenMPKinds.cpp
@@ -139,6 +139,7 @@
   case OMPC_shared:
   case OMPC_reduction:
   case OMPC_task_reduction:
+  case OMPC_in_reduction:
   case OMPC_aligned:
   case OMPC_copyin:
   case OMPC_copyprivate:
@@ -279,6 +280,7 @@
   case OMPC_shared:
   case OMPC_reduction:
   case OMPC_task_reduction:
+  case OMPC_in_reduction:
   case OMPC_aligned:
   case OMPC_copyin:
   case OMPC_copyprivate:
@@ -851,8 +853,8 @@
 bool clang::isOpenMPPrivate(OpenMPClauseKind Kind) {
   return Kind == OMPC_private || Kind == OMPC_firstprivate ||
          Kind == OMPC_lastprivate || Kind == OMPC_linear ||
-         Kind == OMPC_reduction ||
-         Kind == OMPC_task_reduction; // TODO add next clauses like 'reduction'.
+         Kind == OMPC_reduction || Kind == OMPC_task_reduction ||
+         Kind == OMPC_in_reduction; // TODO add next clauses like 'reduction'.
 }
 
 bool clang::isOpenMPThreadPrivate(OpenMPClauseKind Kind) {