Parsing/Sema for OMPCollapseClause.
Actual usage in Sema for collapsing loops will in some future patch.

llvm-svn: 209660
diff --git a/clang/lib/Basic/OpenMPKinds.cpp b/clang/lib/Basic/OpenMPKinds.cpp
index f67cac8..c014241 100644
--- a/clang/lib/Basic/OpenMPKinds.cpp
+++ b/clang/lib/Basic/OpenMPKinds.cpp
@@ -83,6 +83,7 @@
   case OMPC_if:
   case OMPC_num_threads:
   case OMPC_safelen:
+  case OMPC_collapse:
   case OMPC_private:
   case OMPC_firstprivate:
   case OMPC_shared:
@@ -119,6 +120,7 @@
   case OMPC_if:
   case OMPC_num_threads:
   case OMPC_safelen:
+  case OMPC_collapse:
   case OMPC_private:
   case OMPC_firstprivate:
   case OMPC_shared: