schwern/method-signatures — pull request #62 by schwern (2013-01-26 18:39:15+00:00)
Title: Load Data::Alias on demand to work around rt.cpan.org 82922.

Data::Alias + a string eval + threads will segfault. This avoids the
bug for most code which doesn't use the alias parameter. And it
avoids loading a module unnecessarily saving memory and compile time.

I'd leave it in even after 82922 is fixed.