ReadSourceManagerBlock is skipping over records that can contain Blobs. Not passing

in a StringRef to bind to them forces them to be unpacked into the Record as individual
bytes.  This is wasteful, but not likely to be measurable in this instance.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173066 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Serialization/ASTReader.cpp

@@ -810,7 +810,8 @@ bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) {
     
     // Read a record.
     Record.clear();
-    switch (SLocEntryCursor.readRecord(E.ID, Record)) {
+    StringRef Blob;
+    switch (SLocEntryCursor.readRecord(E.ID, Record, &Blob)) {
     default:  // Default behavior: ignore.
       break;