[glibmm/glibmm-2-62: 5/5] Merge branch 'wip/dboles/Binding-2.62' into 'glibmm-2-62'

[Daniel Boles <dboles src gnome org>]

commit bcf55b5d6326c351885bf42405c50f63d1578b0e
Merge: 53bc2b7b 15f06466
Author: Daniel Boles <dboles src gmail com>
Date:   Fri Nov 15 09:39:40 2019 +0000

    Merge branch 'wip/dboles/Binding-2.62' into 'glibmm-2-62'
    
    [glibmm-2.4] Binding: cleanups re SlotTypeTransform/docs, basic test, a nano-optimisation
    
    See merge request GNOME/glibmm!17

 glib/src/binding.hg          |  65 ++++++++++++++----------
 tests/Makefile.am            |   2 +
 tests/glibmm_binding/main.cc | 116 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 157 insertions(+), 26 deletions(-)
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