add unboxing for boolean fields in structs
Merge branch 'master' of https://github.com/samth/pycket
Merge branch 'master' of https://github.com/samth/pycket
Merge branch 'master' of https://github.com/samth/pycket
Merge branch 'master' of https://github.com/samth/pycket
move boolean optimization to the branch