While trying to port my insanely evil template engine over to YARV, I
stumbled over this:

    "quux".instance_eval("foo=42")
  p "baar".instance_eval("foo")

Resulting in:

ruby 1.6.8 (2002-12-24) [powerpc-darwin7.0]
42

ruby 1.8.4 (2005-12-24) [powerpc-darwin7.9.0]
42

ruby 1.9.0 (2005-12-17) [i386-mingw32]  (thanks to riffraff)
42

ruby 1.9.0 (2006-02-14) [powerpc-darwin7.9.0]
YARVCore 0.3.3 (rev: 453) [opts: ]
/Users/chris/mess/current/ytest.rb:2:in `instance_eval': undefined local variable or method `foo' for "bla":String (NameError)
        from (eval):1:in `<main>'
        from /Users/chris/mess/current/ytest.rb:2:in `instance_eval'
        from /Users/chris/mess/current/ytest.rb:2:in `<main>'

Is this a bug, a valid 1.9/2.0 change or just some awful stupid and
suprising trick I'd better not exploit? ;-)
-- 
Christian Neukirchen  <chneukirchen gmail.com>  http://chneukirchen.org

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