Clean the memory of a newly created node
Clean the memory of a newly created node

When the node is allocated from the system pool, it's memset to zero,
but not if it's allocated from one of the memory pools

earl/r3,rgchris/ren-c,kealist/ren-c,kealist/ren-c,rgchris/ren-c,rebolsource/r3,mbk/ren-c,draegtun/ren-c,earl/r3,earl/r3,giuliolunati/ren-c,codebybrett/ren-c,hostilefork/rebol,hostilefork/rebol,mbk/ren-c,kealist/ren-c,kealist/ren-c,rebolsource/r3,draegtun/ren-c,draegtun/ren-c,hostilefork/rebol,rebolsource/r3,rgchris/ren-c,draegtun/ren-c,codebybrett/ren-c,giuliolunati/ren-c,draegtun/ren-c,codebybrett/ren-c,codebybrett/ren-c,hostilefork/rebol,codebybrett/ren-c,draegtun/ren-c,mbk/ren-c,hostilefork/rebol,mbk/ren-c,kealist/ren-c,rgchris/ren-c,hostilefork/rebol,kealist/ren-c,rgchris/ren-c,giuliolunati/ren-c,earl/r3,giuliolunati/ren-c,giuliolunati/ren-c,codebybrett/ren-c