[glib: 6/6] Merge branch 'gsource-dispose' into 'master'

[Sebastian Dröge <sdroege src gnome org>]

commit 96a0f3777c5456028e00070f62349df2899b22f1
Merge: eeb4ad8b1 e315918f5
Author: Sebastian Dröge <slomo coaxion net>
Date:   Tue Dec 3 12:37:22 2019 +0000

    Merge branch 'gsource-dispose' into 'master'
    
    Implement a dispose function for GSource
    
    See merge request GNOME/glib!1175

 gio/gcancellable.c    |  34 ++++++++--------
 glib/gmain.c          | 111 +++++++++++++++++++++++++++++++++++++++++++++-----
 glib/gmain.h          |  21 ++++++++++
 glib/tests/mainloop.c |  91 ++++++++++++++++++++++++++++++++++++++---
 4 files changed, 225 insertions(+), 32 deletions(-)
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