Compilation error due to implicitly using a
self that is not there
Compile time error thrown when
$.foo style calls are used where no invocant is available.
For example the code
in the program body throws the error
===SORRY!===Variable used where no 'self' is available
$.meth is short for
$(self.meth), and there is no
self available in mainline.
Returns the variable/method call that caused the error.