Compiled code and related error messages

I posted this because to make user's aware of the fact that error messages caused in compiled code dont reference the compiled code. The reference points to the 'last' layer of interpreted code.

The error message is also different when invoking from with in an function o r invoking from the console directly:

• Error message created on invocation of compiled code within a function().

  >len();
  undefined
  =undefined
  Uncaught Error: Function not found!
  at line 3 col 20
  console.log(lenc());
                  ^
  in function "len" called from line 1 col 5
  len();
   ^
  > 
  

• Error message created on diret invocation of compiled code from console.

  >lenc("abc");
  =undefined
  Uncaught Error: Expecting a function to call, got Number
  at line 1 col 11
  lenc("123.456");
         ^
  >