>The edit-and-continue features in Visual Studio for C# (and similar feature in Java) is the closest non-lisp thing we have these days.

Some years ago I was playing around with Franz Lisp, and noticed an interesting debugging feature in it. A few days later, I was using a then-new version of Visual Studio for writing either C (not C++) or VB, and noticed the same cool feature in it, which MS was calling Edit and Continue.

IIRC, it was introduced in that VS version, but not sure, since I was not a regular Visual Studio user.