change the interface to ReadStmt to force clients to pass a cursor in to read from.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70188 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 0eb3128..4ea1e05 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -67,7 +67,7 @@
 PCHReader::~PCHReader() {}
 
 Expr *PCHReader::ReadExpr() {
-  return dyn_cast_or_null<Expr>(ReadStmt());
+  return dyn_cast_or_null<Expr>(ReadStmt(Stream));
 }
 
 
@@ -1337,7 +1337,7 @@
   SavedStreamPosition SavedPosition(Stream);
 
   Stream.JumpToBit(Offset);
-  return ReadStmt();
+  return ReadStmt(Stream);
 }
 
 bool PCHReader::ReadDeclsLexicallyInContext(DeclContext *DC,