Index: include/clang/Serialization/ASTBitCodes.h
===================================================================
--- include/clang/Serialization/ASTBitCodes.h	(revision 158525)
+++ include/clang/Serialization/ASTBitCodes.h	(working copy)
@@ -469,7 +469,7 @@
       ///
       /// This array can only be interpreted properly using the Objective-C
       /// categories map.
-      OBJC_CATEGORIES
+      OBJC_CATEGORIES = 54
     };
 
     /// \brief Record types used within a source manager block.