Extend the "type" system (to be renamed to "spec" in
subsequent commit) of elisp-scope.el with a plist spec.
This allows us to define a spec for the 'slots' argument of
'eieio-defclass-internal'. Also add a 'cl-type' spec,
describing the type specifications used by 'cl-typep', and
replace the 'equal' spec with a more general 'member' spec,
like we have in 'cl-typep'.
Take an Edebug spec of t as an indication that all of the
macro's arguments are evaluated, and analyze them as such.
Only do so as a fallback for macros that we cannot expand,
because expanding can lead to more accurate analysis,
e.g. with regards to the output type of the form.
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'.
