[decompiler] as-type and font method support (#3855)

Add support for `as-type` macro, and detecting inline font methods. This
works in all three games but I've only updated jak 3's goal_src for now.
Eventually I will go back and work through the others, but I want to get
more decompiler features in first.


![image](https://github.com/user-attachments/assets/5c31bf85-97b4-437c-bc4b-dc054e60551e)

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Co-authored-by: water111 <awaterford1111445@gmail.com>

test/decompiler/reference/jak3/engine/camera/cam-interface_REF.gc

@@ -93,12 +93,7 @@
 ;; definition for function camera-teleport-to-entity-named
 ;; WARN: Return type mismatch int vs none.
 (defun camera-teleport-to-entity-named ((arg0 string))
-  (let* ((gp-0 (entity-by-name arg0))
-         (a0-3 (if (type? gp-0 entity-actor)
-                   gp-0
-                   )
-               )
-         )
+  (let ((a0-3 (as-type (entity-by-name arg0) entity-actor)))
     (if a0-3
         (camera-teleport-to-entity (the-as entity-actor a0-3))
         (format #t "sorry, couldn't find an actor named '~S'~%" arg0)