Tests: Remove subsequent exceptions .. (not original issue, but annoying while analyzing)
Refine cb7118fc875b6722803e4b11d5681671962a8d3a: Unify get next/prev focus component method.
GearsES2/RedSquareES2: Detect !GLSL and don't attempt to render in such case.
TestGearsES2GLJPanel*: Use GearsES1 is using bitmap - On Windows GDI would be returned!

We still have to solve the GL renderer selection / probing problem, i.e. in such cases
we don't know before context realization which GL renderer we actually receive.
TestGearsES2GLJPanel*: Use Gears (GL 1 based) if using bitmap - On Windows GDI would be returned and neither ES1 nor ES2 features are available.

Fixes commit 3e528a69db38711c789a08d1d7335e5a7739f780