add constant inference of `isdefined`#22304

Merged

JeffBezanson merged 2 commits intomasterfrom jb/isdefined_tfunc

Jun 11, 2017

+98-3

Commits on Jun 10, 2017

fix bug in setting ninitialized of vararg tuples
JeffBezanson
committed
add constant inference of isdefined

carnaval
authored and
JeffBezanson
committed