PCH support for ParenExpr


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69106 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 4ca3c8d..ca76243 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -449,6 +449,7 @@
     void VisitIntegerLiteral(IntegerLiteral *E);
     void VisitFloatingLiteral(FloatingLiteral *E);
     void VisitCharacterLiteral(CharacterLiteral *E);
+    void VisitParenExpr(ParenExpr *E);
     void VisitCastExpr(CastExpr *E);
     void VisitImplicitCastExpr(ImplicitCastExpr *E);
   };
@@ -497,6 +498,14 @@
   Code = pch::EXPR_CHARACTER_LITERAL;
 }
 
+void PCHStmtWriter::VisitParenExpr(ParenExpr *E) {
+  VisitExpr(E);
+  Writer.AddSourceLocation(E->getLParen(), Record);
+  Writer.AddSourceLocation(E->getRParen(), Record);
+  Writer.WriteSubExpr(E->getSubExpr());
+  Code = pch::EXPR_PAREN;
+}
+
 void PCHStmtWriter::VisitCastExpr(CastExpr *E) {
   VisitExpr(E);
   Writer.WriteSubExpr(E->getSubExpr());