PCH support for categories in Objective-C interfaces.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69933 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 9a60625..11302d1 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -415,12 +415,12 @@
   for (ObjCInterfaceDecl::ivar_iterator I = D->ivar_begin(), 
                                      IEnd = D->ivar_end(); I != IEnd; ++I)
     Writer.AddDeclRef(*I, Record);
+  Writer.AddDeclRef(D->getCategoryList(), Record);
   Record.push_back(D->isForwardDecl());
   Record.push_back(D->isImplicitInterfaceDecl());
   Writer.AddSourceLocation(D->getClassLoc(), Record);
   Writer.AddSourceLocation(D->getSuperClassLoc(), Record);
   Writer.AddSourceLocation(D->getLocEnd(), Record);
-  // FIXME: add categories.
   Code = pch::DECL_OBJC_INTERFACE;
 }