[OpenMP] Sema and parsing for 'target teams distribute' pragma

This patch is to implement sema and parsing for 'target teams distribute' pragma.

Differential Revision: https://reviews.llvm.org/D28015

llvm-svn: 290508
diff --git a/clang/include/clang-c/Index.h b/clang/include/clang-c/Index.h
index 0fb9a05..e6b1cd7 100644
--- a/clang/include/clang-c/Index.h
+++ b/clang/include/clang-c/Index.h
@@ -2358,7 +2358,11 @@
    */
   CXCursor_OMPTargetTeamsDirective = 275,
 
-  CXCursor_LastStmt = CXCursor_OMPTargetTeamsDirective,
+  /** \brief OpenMP target teams distribute directive.
+   */
+  CXCursor_OMPTargetTeamsDistributeDirective = 276,
+
+  CXCursor_LastStmt = CXCursor_OMPTargetTeamsDistributeDirective,
 
   /**
    * \brief Cursor that represents the translation unit itself.