Hi,

in my vile attempt to eventually make that bar go green, I noticed
(and Marcus Denker gave some hints) that BlockClosureTest is probably
not relevant any more in a closurised image.

I feel a bit bad about removing a test raising an error, but as it
seems to be irrelevant to the closures implementation that is in the
trunk image, I don't really think it should stay around.

Along the way, I would also remove CompiledMethod>>#createBlock:, as
that is only ever sent from within said test.

Comments?

Best,

Michael