sellout/quid-pro-quo — pull request #13 by orivej (2012-08-11 22:10:29+00:00)
Title: Support contracts on non-generic functions on SBCL.

Here I added support for function advising on SBCL. I learned about this technique from a Leslie Polzer's post at http://blog.viridian-project.de/2008/05/04/function-encapsulation-in-sbcl/.

Error reporting is suboptimal as 2nd and further advices report obscure # for the failed-check function.