feature/noverlay updated (ba5fe8e789 -> 2c4a3910b3)

[Stefan Monnier]

monnier pushed a change to branch feature/noverlay.

      from  ba5fe8e789 itree.c: Remove `tree` field from iterator
       new  b8fbd42f0a mark_overlays: Use the normal ITREE_FOREACH
       new  2c4a3910b3 itree: Use a single iterator object


Summary of changes:
 src/alloc.c | 20 +++------------
 src/itree.c | 81 ++++++++++++++++++++++++++-----------------------------------
 src/itree.h |  8 ++----
 3 files changed, 40 insertions(+), 69 deletions(-)