[decomp] get started on game info (#674)

* temp

* menu text

* wip

* recognize handle to process

* more

goal_src/kernel/gkernel-h.gc

@@ -404,7 +404,7 @@
   )
 
 
-(defmacro get-process-from-handle (handle)
+(defmacro handle->process (handle)
   ;; the actual implementation is more clever than this.
   ;; Checks PID.
   `(if (-> ,handle process)
@@ -433,7 +433,7 @@
   ;; a 0 in the process field, so we check it manually here.
   (if (nonzero? (-> obj u64))
       (format #t "#<handle :process ~A :pid ~D>"
-              (get-process-from-handle obj)
+              (handle->process obj)
               (-> obj pid)
               )
       (format #t "#<handle :process 0 :pid 0>")