t/op/chars.t See if character escapes work
t/op/chdir.t See if chdir works
t/op/chop.t See if chop works
+t/op/chr.t See if chr works
t/op/closure.t See if closures work
t/op/cmp.t See if the various string and numeric compare work
t/op/concat.t See if string concatenation works