Support ParenListExpr for PCH.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107266 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReaderStmt.cpp b/lib/Frontend/PCHReaderStmt.cpp
index 9a29234..b9751e8 100644
--- a/lib/Frontend/PCHReaderStmt.cpp
+++ b/lib/Frontend/PCHReaderStmt.cpp
@@ -17,7 +17,7 @@
 #include "clang/AST/StmtVisitor.h"
 using namespace clang;
 
-namespace {
+namespace clang {
 
   class PCHStmtReader : public StmtVisitor<PCHStmtReader> {
     PCHReader &Reader;
@@ -69,6 +69,7 @@
     void VisitStringLiteral(StringLiteral *E);
     void VisitCharacterLiteral(CharacterLiteral *E);
     void VisitParenExpr(ParenExpr *E);
+    void VisitParenListExpr(ParenListExpr *E);
     void VisitUnaryOperator(UnaryOperator *E);
     void VisitOffsetOfExpr(OffsetOfExpr *E);
     void VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E);
@@ -429,6 +430,17 @@
   E->setSubExpr(Reader.ReadSubExpr());
 }
 
+void PCHStmtReader::VisitParenListExpr(ParenListExpr *E) {
+  VisitExpr(E);
+  unsigned NumExprs = Record[Idx++];
+  E->Exprs = new (*Reader.getContext()) Stmt*[NumExprs];
+  for (unsigned i = 0; i != NumExprs; ++i)
+    E->Exprs[i] = Reader.ReadSubStmt();
+  E->NumExprs = NumExprs;
+  E->LParenLoc = Reader.ReadSourceLocation(Record, Idx);
+  E->RParenLoc = Reader.ReadSourceLocation(Record, Idx);
+}
+
 void PCHStmtReader::VisitUnaryOperator(UnaryOperator *E) {
   VisitExpr(E);
   E->setSubExpr(Reader.ReadSubExpr());
@@ -1328,6 +1340,10 @@
       S = new (Context) ParenExpr(Empty);
       break;
 
+    case pch::EXPR_PAREN_LIST:
+      S = new (Context) ParenListExpr(Empty);
+      break;
+
     case pch::EXPR_UNARY_OPERATOR:
       S = new (Context) UnaryOperator(Empty);
       break;