ZJIT: protoboeuf benchmark functions are too large

[tekknolagi]

ZJIT is refusing to compile the functions because they have too many live registers, taking too much stack size, and the jumps are too big. To fix this, we need to do all of:

• Minimize SSA, either in construction or after construction
• Loop instead of bailing in FrameSetup if the offset is > 12 bits on aarch64 (ZJIT: Loop, not bail, for large FrameSetup ruby/ruby#17735)
• Turn Jump(Label) or Jump(Block) into more than just a b on aarch64 since we can't fit the jumps in one b anymore

[tekknolagi]

With a really horrible SSA minimization prototype, total_native_stack_bytes (measured by summing the native stack space reserved for each JIT function compiled) goes from ~2.15M on lobsters to ~1.14M.