We certainly won't find the requested namespace in a newly-created
repository with no typelibs loaded.
Fixes: 9ab84bc1 "girwriter: Stop using the singleton GIRepository"
Signed-off-by: Simon McVittie <smcv@collabora.com>
Rather than a mix of structs being in `GI` and their methods being in
`g_`.
We’ve chosen not to use the `g_` namespace because a number of the
libgirepository class names are quite generic, so we’d end up with
confusing symbols like `GScopeType` and `GArgument`.
Signed-off-by: Philip Withnall <pwithnall@gnome.org>
Helps: #3155
