action_direction_t 1990 src/diffviewer/ydiff.c                    action_direction_t merge_direction)
action_direction_t 2027 src/diffviewer/ydiff.c                 action_direction_t merge_direction)
action_direction_t 2074 src/diffviewer/ydiff.c                     action_direction_t merge_direction)
action_direction_t 2118 src/diffviewer/ydiff.c do_merge_hunk (WDiff *dview, action_direction_t merge_direction)