This groups them with the rest of the tests, and enables parts of
the test code to be unembedded from libdbus and moved to test/ too.
Rename the executable to test-misc-internals, not test-dbus. The name
test-dbus made some sense as "the executable that contains the code in
dbus/", but makes a lot less sense in test/: dbus is the name of the
entire project, so this test has no particular special claim to that
name. test-libdbus doesn't seem right either, because all the tests
exercise libdbus one way or another.
Signed-off-by: Simon McVittie <smcv@collabora.com>
