scratch/igc updated (6ffadd9209f -> 0be0d5ad5d8)

[Gerd Moellmann]

gerd pushed a change to branch scratch/igc.

      from  6ffadd9209f Avoid memcpy'ing too much, igc_grow_ptr_vec
       new  b6794448425 Add a igc_make_byte_vec function
       new  e20eb76c8e0 Use igc_make_byte_vec for hash tables
       new  516282d97eb No need to fix the markers field twice
       new  d695133791d For igc-info, include information about leaf objects
       new  0be0d5ad5d8 Return information about the arena for igc-info


Summary of changes:
 src/alloc.c |  8 ++++++++
 src/igc.c   | 58 +++++++++++++++++++++++++++++++++++++---------------------
 src/igc.h   |  1 +
 3 files changed, 46 insertions(+), 21 deletions(-)