action_direction_t 1976 src/diffviewer/ydiff.c action_direction_t merge_direction) action_direction_t 2013 src/diffviewer/ydiff.c action_direction_t merge_direction) action_direction_t 2060 src/diffviewer/ydiff.c action_direction_t merge_direction) action_direction_t 2104 src/diffviewer/ydiff.c do_merge_hunk (WDiff *dview, action_direction_t merge_direction)