[PATCH v10 10/13] tag.c: use 'ref-filter' data structures

From: Karthik Nayak karthik@gmail.com Make 'tag.c' use 'ref-filter' data structures and make changes to support the new data structures. This is a part of the process of porting 'tag.c' to use 'ref-filter' APIs. This is a temporary step before porting 'tag.c' to use 'ref-filter' completely.

[PATCH v10 10/13] tag.c: use 'ref-filter' data structures

From: Karthik Nayak karthik@gmail.com Make 'tag.c' use 'ref-filter' data structures and make changes to support the new data structures. This is a part of the process of porting 'tag.c' to use 'ref-filter' APIs. This is a temporary step before porting 'tag.c' to use 'ref-filter' completely.