gistfile1.txt

zoffix@leliana:/tmp/tmp.lspuZhiy8Z$ tree
.
├── import.p6
├── in-file.p6
└── lib
    └── Ops.pm6

1 directory, 3 files
zoffix@leliana:/tmp/tmp.lspuZhiy8Z$ cat lib/Ops.pm6 
unit module Ops;
sub infix:['<=»']  is export { $^a < $^b }
zoffix@leliana:/tmp/tmp.lspuZhiy8Z$ cat import.p6 
say &[<=»];
zoffix@leliana:/tmp/tmp.lspuZhiy8Z$ cat in-file.p6 
sub infix:['<=»']  is export { $^a < $^b }
say &[<=»];
zoffix@leliana:/tmp/tmp.lspuZhiy8Z$ perl6 in-file.p6 
sub infix:<\<=»> ($a, $b) { #`(Sub+{Precedence}|49450656) ... }
zoffix@leliana:/tmp/tmp.lspuZhiy8Z$ perl6 -Ilib -MOps import.p6 
===SORRY!=== Error while compiling /tmp/tmp.lspuZhiy8Z/import.p6
Unable to parse expression in infix noun; couldn't find final ']' 
at /tmp/tmp.lspuZhiy8Z/import.p6:1
------> say &[<=⏏»];
zoffix@leliana:/tmp/tmp.lspuZhiy8Z$