fix: irb_require matches similar names

[GabrielLidenor]

closes #1252

Previously, requiring foo could be skipped if foo2.rb was already loaded. The filename matching now requires an exact match, and a regression test covers this case.

[tompng]

Looks good. Thank you 👍

In this repository and in most repositories in ruby org, you don't need to create a short-lived issue just to pair with a bug fix PR. Of course a standalone bug report issue or an issue meant for bigger discussion is always welcome 😄
One exception: Bugfix PR to ruby/ruby repo requires bug report to bugs.ruby-lang.org for backport management.

[GabrielLidenor]

Looks good. Thank you 👍

In this repository and in most repositories in ruby org, you don't need to create a short-lived issue just to pair with a bug fix PR. Of course a standalone bug report issue or an issue meant for bigger discussion is always welcome 😄 One exception: Bugfix PR to ruby/ruby repo requires bug report to bugs.ruby-lang.org for backport management.

Oh, Ok

Thank you so much for this info. 😄