[OPENMP]Allow priority clause in combined task-based directives.

The expression of the priority clause must be captured in the combined
task-based directives, like 'parallel master taskloop' directive.

llvm-svn: 375026
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index dc65303..2d3884e 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -12996,6 +12996,7 @@
 }
 
 void OMPClauseReader::VisitOMPPriorityClause(OMPPriorityClause *C) {
+  VisitOMPClauseWithPreInit(C);
   C->setPriority(Record.readSubExpr());
   C->setLParenLoc(Record.readSourceLocation());
 }
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 1e76c32..6f3b367 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -6977,6 +6977,7 @@
 }
 
 void OMPClauseWriter::VisitOMPPriorityClause(OMPPriorityClause *C) {
+  VisitOMPClauseWithPreInit(C);
   Record.AddStmt(C->getPriority());
   Record.AddSourceLocation(C->getLParenLoc());
 }