Change the terminology used in elisp-scope.el to call the
symbols we use to categorizes the use of (other) symbols
"symbol roles" instead of "symbol types".
* lisp/emacs-lisp/elisp-scope.el:
* lisp/progmodes/elisp-mode.el: Change all occurrences of
"symbol type" say "role" instead.
Update all remaining function handlers to use
'elisp-scope-define-func-analyzer' instead of
'elisp-scope-define-function-analyzer'. The difference is
that the former handles all arguments explicitly, while the
latter analyzes all arguments as evaluated forms
automatically. By handling the arguments explicitly, we get
a chance to specify the expected type of different arguments.
Lastly, since 'elisp-scope-define-function-analyzer' is now
unused, rename 'elisp-scope-define-func-analyzer' to
'elisp-scope-define-function-analyzer'.
