[gtk: 3/3] Merge branch 'wip/chergert/fix-class-private-data-usage' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit 7088bd18e6a86189911823f4841182d41bba8b8f
Merge: 5b2cdad19e ccac404f28
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Mar 20 18:49:58 2020 +0000

    Merge branch 'wip/chergert/fix-class-private-data-usage' into 'master'
    
    Fix GtkWidgetClassPrivate data usage
    
    See merge request GNOME/gtk!1545

 gtk/gtkactionmuxer.c        | 188 +++++++++++++++++++++++---------------------
 gtk/gtkactionmuxerprivate.h |  15 ++--
 gtk/gtkapplication.c        |   2 +-
 gtk/gtkwidget.c             |  47 ++---------
 gtk/gtkwidgetprivate.h      |  17 ++++
 testsuite/gtk/action.c      |  16 ++--
 6 files changed, 140 insertions(+), 145 deletions(-)
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