It's the conformance test suite: there's no need to namespace the files,
just like there's no need to namespace the units.
This commit does not change the Cogl tests: they will be moved to Cogl
over time, and it's easier to do if we leave them as they are.
ClutterText behaviour with regards to the paint opacity has been
changed by commit 07e19fff5ffa9617413fa6c3715914513fec3793.
We need to update the test suite for the paint opacity to reflect
that change as well.
* tests/conform/Makefile.am:
* tests/conform/test-conform-main.c:
* tests/conform/test-paint-opacity.c: Add test unit for label,
rectangle and paint opacity.
