Using an nqp mod from a used Perl6 mod

nqpmodsixmod.txt

$ cd /tmp/
$ cat > nqpmod.nqp
use nqp;
sub nqpsub(*@foo) is export { nqp::say("OHAI nqpsub") };

$ nqp --target=mbc --output=/tmp/nqpmod.moarvm --encoding=utf8 /tmp/nqpmod.nqp
$ NQP_LIB=/tmp/ nqp -e 'use nqpmod; nqpsub();'
OHAI nqpsub

$ cat > sixmod.pm6
use nqp;
use nqpmod:from<NQP>;
use Perl6::World:from<NQP>;

sub sixsub is export {
   nqpsub(nqp::gethllsym('nqp', 'nqplist')());
}

$ NQP_LIB=/tmp/ PERL6LIB=/tmp/ perl6 --ll-exception -e 'use sixmod; sixsub()'
SC not yet resolved; lookup failed
   at /tmp/sixmod.pm6 (sixmod):5  (/tmp/.precomp/BE558BBA8EFBC76F5B0517D79C1CD552B384E0EC.1506360367.38564/AE/AE73D44C9CDB1182D876A34E9EC0537C2CE87659:sixsub)
 from -e:1  (<ephemeral file>:<unit>)
 from -e:1  (<ephemeral file>:<unit-outer>)
 from gen/moar/stage2/NQPHLL.nqp:1529  (/home/bri/.local/share/nqp/lib/NQPHLL.moarvm:eval)
 from gen/moar/stage2/NQPHLL.nqp:1636  (/home/bri/.local/share/nqp/lib/NQPHLL.moarvm:)
 from gen/moar/stage2/NQPHLL.nqp:1682  (/home/bri/.local/share/nqp/lib/NQPHLL.moarvm:command_eval)
 from src/Perl6/Compiler.nqp:42  (/home/bri/.local/share/nqp/lib/Perl6/Compiler.moarvm:command_eval)
 from gen/moar/stage2/NQPHLL.nqp:1617  (/home/bri/.local/share/nqp/lib/NQPHLL.moarvm:command_line)
 from gen/moar/main.nqp:47  (/home/bri/.local/share/perl6/runtime/perl6.moarvm:MAIN)
 from gen/moar/main.nqp:38  (/home/bri/.local/share/perl6/runtime/perl6.moarvm:<mainline>)
 from <unknown>:1  (/home/bri/.local/share/perl6/runtime/perl6.moarvm:<main>)
 from <unknown>:1  (/home/bri/.local/share/perl6/runtime/perl6.moarvm:<entry>)

$ NQP_LIB=/tmp/ PERL6LIB=/tmp/ perl6 --ll-exception -e 'use nqp; use nqpmod:from<NQP>; use Perl6::World:from<NQP>; nqpsub(nqp::gethllsym("nqp", "nqplist")());'
OHAI nqpsub