Check overflow of size calculation in series expansion
Check overflow of size calculation in series expansion

This fixes the crash caused by (turn it into an exception):

a: read %/bin/ls
b: make binary! 1024
loop 20000 [
	append b a
]

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