Deleting jump tables and CFG

[Richard Kenner]

If the answer to this question has changed recently, I'm asking it about a
bug in 3.2.

When a case jump is deleted due to it being an unreachable block, who is
responsible for deleting the associated branch table?  As I understand it,
that's *not* part of the block and nothing is keeping it adjacent to the
block.

Basically, my question is how the jump table is handled in the CFG.