[lispm]

There are ways to deal with that in dynamically typed languages.

1) Common Lisp implementation use a compiler to detect typos, etc.

    CL-USER 21 > (defun bar () (fo0))
    BAR

    CL-USER 22 > (compile *)

    The following function is undefined:
    FO0 which is referenced by BAR

2) In Common Lisp one can ask the running Lisp system for information about classes, symbols, functions, etc.

The use cases for renaming are also completely different. If you take for example a Java class and you want to rename an attribute and update the getter/setters you might want to use a 'tool'. In a dynamically typed language like Common Lisp, this is often not necessary because code generation is widely used and changes can be propagate that way.