Regenerate method definitions from gtksourceview 3.16.1
Regenerate method definitions from gtksourceview 3.16.1

Done using the following command and manually readding deprecated
methods:

../glibmm/tools/defs_gen/h2def.py ../gtksourceview/gtksourceview/*.h >
gtksourceview/src/gtksourceview_methods.defs

GNOME/gtksourceviewmm,GNOME/gtksourceviewmm,GNOME/gtksourceviewmm