* YJIT: Cancel on-stack jit_return on invalidation

Co-authored-by: Alan Wu <alansi.xingwu@shopify.com>

* Use RUBY_VM_CONTROL_FRAME_STACK_OVERFLOW_P

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Co-authored-by: Alan Wu <alansi.xingwu@shopify.com>

We've long had a size restriction on the code memory region such that a
u32 could refer to everything. This commit capitalizes on this
restriction by shrinking the size of `CodePtr` to be 4 bytes from 8.

To derive a full raw pointer from a `CodePtr`, one needs a base pointer.
Both `CodeBlock` and `VirtualMemory` can be used for this purpose. The
base pointer is readily available everywhere, except for in the case of
the `jit_return` "branch". Generalize lea_label() to lea_jump_target()
in the IR to delay deriving the `jit_return` address until `compile()`,
when the base pointer is available.

On railsbench, this yields roughly a 1% reduction to `yjit_alloc_size`
(58,397,765 to 57,742,248).

So that we get a reminder to check CodeBlock::has_dropped_bytes().
Internally, asm.compile() already checks it, and this patch just
propagates it out to the caller with a `#[must_use]`.

Code GC logic moved out one level in entry_stub_hit(), so the body
can freely use `?`

Previously, the version-controlled `cruby_bindings.inc.rs` file
contained the build-time artifact `id.h`, which nobu mentioned hinders
the goal of having fewer magic numbers in the repository.

Lookup the IDs YJIT needs on boot. It costs cycles, but it's fine since
YJIT only uses a handful of IDs at the moment. No perceptible
degradation to boot time found in my testing.

* YJIT: Introduce Target::SideExit

* YJIT: Obviate Insn::SideExitContext

* YJIT: Avoid cloning a Context for each insn

We crashed in some edge cases due to the recent change to not compile
encoded iseqs that are larger than `u16::MAX`.

- Match the C signature of rb_yjit_constant_ic_update() and clamp down
  to `IseqIdx` size
- Return failure instead of panicking with `unwrap()` in codegen when
  the iseq is too large

Co-authored-by: Maxime Chevalier-Boisvert <maxime.chevalierboisvert@shopify.com>
Co-authored-by: Noah Gibbs <noah.gibbs@shopify.com>