json_atom.c: consistently use type size_t for variables l, lim, len in all functions
json_atom.c: consistently use type size_t for variables l, lim, len in all functions

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