[jak2] fill in a lot of flags for decomp + mouse macros (#2927)

Also changed the default type of enums to `int64` (same as `int`).

test/decompiler/reference/jak2/engine/debug/debug_REF.gc

@@ -1605,6 +1605,7 @@
   )
 
 ;; definition for method 3 of type debug-vertex-stats
+;; INFO: this function exists in multiple non-identical object files
 (defmethod inspect debug-vertex-stats ((obj debug-vertex-stats))
   (format #t "[~8x] ~A~%" obj (-> obj type))
   (format #t "~Tlength: ~D~%" (-> obj length))
@@ -1726,8 +1727,7 @@
 
 ;; definition (debug) for function add-debug-cursor
 ;; INFO: Used lq/sq
-;; WARN: Return type mismatch int vs none.
-(defun-debug add-debug-cursor ((enable symbol) (bucket bucket-id) (x int) (y int) (arg4 int))
+(defun-debug add-debug-cursor ((enable symbol) (bucket bucket-id) (x int) (y int) (arg4 mouse-buttons))
   (when enable
     (with-dma-buffer-add-bucket ((buf (-> *display* frames (-> *display* on-screen) global-buf))
                                  bucket
@@ -1740,13 +1740,13 @@
           (+ x -5)
           (+ y -4)
           (cond
-            ((= v1-7 1)
+            ((= v1-7 (mouse-buttons left))
              (font-color red)
              )
-            ((= v1-7 2)
+            ((= v1-7 (mouse-buttons right))
              (font-color yellow)
              )
-            ((= v1-7 4)
+            ((= v1-7 (mouse-buttons middle))
              (font-color green)
              )
             (else
@@ -1759,7 +1759,6 @@
       )
     )
   0
-  (none)
   )
 
 ;; this part is debug only