sha1_object_info_extended(): hint about objects in delta-base cache

An object found in the delta-base cache is not guaranteed to
stay there, but we know it came from a pack and it is likely
to give us a quick access if we read_sha1_file() it right now,
which is a piece of useful information.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/cache.h b/cache.h
index 9fbc07e97..3a1af9d95 100644
--- a/cache.h
+++ b/cache.h
@@ -1030,7 +1030,8 @@ struct object_info {
 	enum {
 		OI_CACHED,
 		OI_LOOSE,
-		OI_PACKED
+		OI_PACKED,
+		OI_DBCACHED
 	} whence;
 	union {
 		/*