json_atom.c: do not unconditionally (and unnecessarily) cast a BATcount to int; with this fix, the code might also work correctly with BATs holding more then 2 billion BUNs.
json_atom.c: do not unconditionally (and unnecessarily) cast a BATcount to int;
with this fix, the code might also work correctly with BATs holding more then 2 billion BUNs.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb