bug#35064: gnome-desktop-service-type does not work

[Luther Thompson]

When doing a reconfigure, I got this message:

/home/luther/config.scm:60:10: warning: 'gnome-desktop-service' is deprecated, 
use 'gnome-desktop-service-type' instead

So I changed (gnome-desktop-service) to (gnome-desktop-service-type) and got
this error:

guix system: error: failed to load 'config.scm':
/home/luther/config.scm:60:10: Wrong type to apply: #<service-type 
gnome-desktop 1bc6280>

That told me that gnome-desktop-service-type is not a function, so I removed
the parentheses and got this error:

---BEGIN---
Backtrace:
          13 (primitive-load "/home/luther/.config/guix/current/bin/…")
In guix/ui.scm:
  1660:12 12 (run-guix-command _ . _)
In ice-9/boot-9.scm:
    829:9 11 (catch _ _ #<procedure 7f49cda519e8 at guix/ui.scm:624…> …)
    829:9 10 (catch _ _ #<procedure 7f49cda51a00 at guix/ui.scm:750…> …)
In guix/scripts/system.scm:
   1301:8  9 (_)
In guix/status.scm:
    810:4  8 (call-with-status-report _ _)
In guix/scripts/system.scm:
   1162:6  7 (process-action _ _ _)
In guix/store.scm:
  1737:24  6 (run-with-store _ _ #:guile-for-build _ #:system _ # _)
In guix/scripts/system.scm:
  1175:13  5 (_ _)
   882:18  4 (perform-action reconfigure #<<operating-system> kerne…> …)
In gnu/system.scm:
   842:19  3 (operating-system-derivation _)
In gnu/services.scm:
    737:6  2 (instantiate-missing-services _)
In srfi/srfi-1.scm:
   466:18  1 (fold #<procedure 7f49c2c19d68 at gnu/services.scm:737…> …)
In gnu/services.scm:
   738:27  0 (_ _ _)

gnu/services.scm:738:27: In procedure service-kind: Wrong type argument: 
#<service-type gnome-desktop bb1960>
---END---

The manual at System Configuration > Services > Desktop Services says both that
gnome-desktop-service-type is a procedure and a variable of type
gnome-desktop-configuration.

Luther