jbe/bsw@0: function trace._new_entry(node)
jbe/bsw@0:   local node = node or {}
jbe@302:   local stack = trace._stack
jbe@302:   local parent = stack[#stack]
jbe@302:   parent[#parent+1] = node
jbe/bsw@0:   return node
jbe/bsw@0: end