[OPENMP50]Add support for parallel master taskloop simd directive.

Added full support for parallel master taskloop simd directive.
diff --git a/clang/include/clang-c/Index.h b/clang/include/clang-c/Index.h
index 2268935..438ee36 100644
--- a/clang/include/clang-c/Index.h
+++ b/clang/include/clang-c/Index.h
@@ -2567,8 +2567,11 @@
    */
   CXCursor_OMPMasterTaskLoopSimdDirective      = 283,
 
+  /** OpenMP parallel master taskloop simd directive.
+   */
+  CXCursor_OMPParallelMasterTaskLoopSimdDirective      = 284,
 
-  CXCursor_LastStmt = CXCursor_OMPMasterTaskLoopSimdDirective,
+  CXCursor_LastStmt = CXCursor_OMPParallelMasterTaskLoopSimdDirective,
 
   /**
    * Cursor that represents the translation unit itself.