[gtk: 4/4] Merge branch 'double-dead-keys' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit c9ab7c5750b11ea6a1eba10c6ceadd92a0b1dd81
Merge: f6f07ba238 01f4e5c8cd
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Mar 27 01:22:41 2021 +0000

    Merge branch 'double-dead-keys' into 'master'
    
    Double dead keys
    
    See merge request GNOME/gtk!3355

 gtk/gtkcomposetable.c        |  6 +++
 gtk/gtkimcontextsimple.c     | 92 ++++++++++++++++++++++----------------------
 testsuite/gtk/composetable.c | 28 ++++++++++++++
 3 files changed, 81 insertions(+), 45 deletions(-)
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