Test .first works when called on Numerics
Test .first works when called on Numerics

Bug find: https://irclog.perlgeek.de/perl6/2016-12-08#i_13705826
Rakudo fix: https://github.com/rakudo/rakudo/commit/8cb3e1be4a

bitrauser/roast,perl6/roast,dogbert17/roast,dogbert17/roast,bitrauser/roast