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

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

Differential Revision: https://reviews.llvm.org/D27818

llvm-svn: 290038
diff --git a/clang/include/clang-c/Index.h b/clang/include/clang-c/Index.h
index 5756f9f..0fb9a05 100644
--- a/clang/include/clang-c/Index.h
+++ b/clang/include/clang-c/Index.h
@@ -2354,7 +2354,11 @@
    */
   CXCursor_OMPTeamsDistributeParallelForDirective = 274,
 
-  CXCursor_LastStmt = CXCursor_OMPTeamsDistributeParallelForDirective,
+  /** \brief OpenMP target teams directive.
+   */
+  CXCursor_OMPTargetTeamsDirective = 275,
+
+  CXCursor_LastStmt = CXCursor_OMPTargetTeamsDirective,
 
   /**
    * \brief Cursor that represents the translation unit itself.