rakudo/rakudo — pull request #168 by timo (2013-06-18 21:30:12+00:00)
Title: implement sequences between 1-codepoint strings

makes code like say '▁' ... '█' output ▁ ▂ ▃ ▄ ▅ ▆ ▇ █.

Passes all spectests. Will unfudge more tests when the PR is merged.