pr-13346-c3308b vs. 2412-270 / ogl-lin-mesa / jb-shadow

pr-13346-c3308b (c3308bdb) Diff 2412-270 (c770e7c2)
Failure e76f0c574e41572321a0f9fabb2db2e9c36323c7
Failure 0c29b25b5455745f808c482d4695fc644e31d4ad
Failure 981f51dd57877661358e57164656d523e236153a