ObjectiveC: under -Wunused-property-ivar warn if property's
backing warning is not used in one of its accessor methods.
// rdar://14989999


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193439 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReaderDecl.cpp b/lib/Serialization/ASTReaderDecl.cpp
index d3937fc..5bcd5dc 100644
--- a/lib/Serialization/ASTReaderDecl.cpp
+++ b/lib/Serialization/ASTReaderDecl.cpp
@@ -798,6 +798,8 @@
   IVD->setNextIvar(0);
   bool synth = Record[Idx++];
   IVD->setSynthesize(synth);
+  bool backingIvarReferencedInAccessor = Record[Idx++];
+  IVD->setBackingIvarReferencedInAccessor(backingIvarReferencedInAccessor);
 }
 
 void ASTDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) {