action_direction_t 1992 src/diffviewer/ydiff.c action_direction_t merge_direction) action_direction_t 2029 src/diffviewer/ydiff.c action_direction_t merge_direction) action_direction_t 2076 src/diffviewer/ydiff.c action_direction_t merge_direction) action_direction_t 2120 src/diffviewer/ydiff.c do_merge_hunk (WDiff * dview, action_direction_t merge_direction)