dev: Don't statically enumerate host signatures in Pulley (#9693)

I'm doing some other refactoring which makes it a pain to maintain a
list in two locations of what all the host signatures are. Instead
remove the pulley `for_each_host_signature!` macro entirely. My thinking
is to instead implement a different system for host calls in pulley:

* The same relocation-style mechanism is used with some
  number-embedded-in-the-bytecode.
* The interpreter exits with "imma call the host" when it sees this
  special opcode.
* The interpreter embedder, aka Wasmtime, is responsible for then
  invoking the actual function pointer.
* Wasmtime already has static knowledge of all its function signatures,
  e.g. via various macros.

This will prevent the need to list all function signatures twice and
risk them getting out of sync. Most of the Pulley-level integration work
here is left to a future commit.

v27.0.0: Release Wasmtime 27.0.0 (#9624)

27.0.0

Released 2024-11-20.

Added

• Support for the Wasm GC proposal is now complete. A new "null" GC has been
  also added which does not ever collect garbage.
  #9389
  #9392
  #9401
  #9435
  #9437
  #9438
  #9446
  #9448
  #9454
  #9455
  #9484

• Unstable WIT APIs now have feature gates configured at link-time and new
  -Scli-exit-with-code / -Snetwork-error-code options are available as well.
  #9381
  #9276

• Initial support for the wide-arithmetic proposal has been implemented.
  #9403
  #9500

• Guests on s390x now implement the "inline probestacks" for Cranelift to more
  robustly detect stack overflows.
  #9423

• Missing CLI options for the pooling allocator have been filled out.
  #9447

• Cranelift now supports 128-bit atomics on x64.
  #9459

• A new Cargo feature has been added to the wasmtime crate to reexport the
  wasmparser dependency.
  #9485

• Support for a new PyTorch backend for wasi-nn has been added.
  #9234

• A new -Cnative-unwind-info flag has been added to the wasmtime CLI.
  #9494

• Initial support for illumos has been added.
  #9535

• A new Caller::get_module_export API has been added.
  #9525

• Basic debug logging has been added to the debug info transformatino.
  #9526

Changed

• The WASI WITs vendored are now updated to 0.2.2.
  #9395

• The wasmtime-wasi-runtime-config is now named wasmtime-wasi-config.
  #9404

• Documentation on the implementation status of WebAssembly proposals has been
  updated.
  #9434

• Wasmtime's WASI documentation has been overhauled.
  #9471

• The wasi_config_preopen_dir in Wasmtime's C API now takes file/directory
  permissions.
  #9477

• Detection of libunwind vs libgcc is now done with weak symbols.
  #9479

• Winch has improved detection of unsupported features in a Config.
  #9490

• Winch now supports fuel-based interruption.
  #9472

• Wasmtime's minimum supported Rust version is now 1.80.
  #9496

• ISLE no longer supports scheme-style booleans.
  #9522

• ISLE now supports block comments.
  #9529

• Support for shared memory in the C API has been added.
  #9507

• Configuration options for guard size regions have been merged into a single
  option.
  #9528

Fixed

• Double-registration of debug information for modules in components has been
  fixed.
  #9470

• A panic on AArch64 for vector constants has been fixed.
  #9482

• A miscompile with sdiv and INT_MIN / -1 has been fixed on aarch64.
  #9541

v26.0.1: Release Wasmtime 26.0.1 (#9561)

26.0.1

Released 2024-11-05.

Fixed

• Update to cap-std 3.4.1, for #9559, which fixes a wasi-filesystem sandbox
  escape on Windows.
  CVE-2024-51745.

v25.0.3: Release Wasmtime 25.0.3 (#9562)

25.0.3

Released 2024-11-05.

Fixed

• Update to cap-std 3.4.1, for #9559, which fixes a wasi-filesystem sandbox
  escape on Windows.
  CVE-2024-51745.

v24.0.2: Release Wasmtime 24.0.2 (#9563)

24.0.2

Released 2024-11-05.

Fixed

• Update to cap-std 3.4.1, for #9559, which fixes a wasi-filesystem sandbox
  escape on Windows.
  CVE-2024-51745.

v26.0.0: Release Wasmtime 26.0.0 (#9489)

26.0.0

Released 2024-10-22.

Added

• The "table64" extension of the memory64 proposals to WebAssembly has been
  implemented.
  #9206

• Initial support has been added for compiling WebAssembly modules with Pulley,
  Wasmtime's interpreter. Note that the interpreter is not feature complete yet.
  #9240

• Wasmtime can now execute code without relying on host-based signal handlers.
  #9230

• Work has continued on implementing the GC proposals in Wasmtime.
  #9246
  #9244
  #9271
  #9275
  #9278
  #9282
  #9285
  #9326
  #9341
  #9358

• Support for ARM64 Windows has been finished with support for unwinding.
  Release binaries are now also available for this platform.
  #9266
  #9283

• The bindgen! macro now supports multiple paths to load WIT from.
  #9288

• A new -W async-stack-size=N argument has been added to the CLI.
  #9302

• A new wasmtime completion subcommand can be used to generate a completion
  script for the Wasmtime CLI.
  #9312

• Components now support initialize_copy_on_write_image like core modules.
  #9357

• Initial support for the ISLE verifier Crocus has landed.
  #9178

Changed

• Wasmtime now requires Rust 1.79.0 to compile.
  #9202

• The future-trailers.get in wasi-http now returns none when trailers are
  absent.
  #9208

• The Cranelift instructions iadd_cin and isub_bin were removed. The
  isub_borrow and iadd_carry instructions were renamed to {u,s}add_carry
  and {u,s}sub_borrow.
  #9199

• Winch now supports multi-value results on AArch64.
  #9218

• Some issues related to shutdown have been fixed with WASI sockets.
  #9225

• Cranelift now has a Cargo feature to enable support for all native ISAs and
  not Pulley.
  #9237

• Cranelift support for StructArgument in the arm64, riscv64, and s390x
  backends has been removed.
  #9258

• The pooling allocator no longer limits instances/memories/tables by default.
  #9257

• Stack overflow on an async stack will now print a message that this happened.
  #9304

• Cranelift's cranelift-wasm crate has been removed and folded directly into
  wasmtime-cranelift.
  #9313

• Cranelift's TrapCode type is now represented with a single byte.
  #9338

Fixed

• Stack slots in Cranelift are now aligned from the start instead of the end.
  #9279

• The WASIp1 adapter now correctly handles allocations where the initial
  alignment consumes the entire allocation.
  #9356

v25.0.2: Release Wasmtime 25.0.2 (#9366)

25.0.2

Released 2024-10-09.

Fixed

• Fix a runtime crash when combining tail-calls with host imports that capture a
  stack trace or trap.
  GHSA-q8hx-mm92-4wvg

• Fix a race condition could lead to WebAssembly control-flow integrity and type
  safety violations.
  GHSA-7qmx-3fpx-r45m

v24.0.1: Release Wasmtime 24.0.1 (#9370)

24.0.1

Released 2024-10-09.

Fixed

• Fix a runtime crash when combining tail-calls with host imports that capture a
  stack trace or trap.
  GHSA-q8hx-mm92-4wvg

• Fix a race condition could lead to WebAssembly control-flow integrity and type
  safety violations.
  GHSA-7qmx-3fpx-r45m

v23.0.3: Release Wasmtime 23.0.3 (#9365)

23.0.3

Released 2024-10-09.

Fixed

• Fix a runtime crash when combining tail-calls with host imports that capture a
  stack trace or trap.
  GHSA-q8hx-mm92-4wvg

• Fix a race condition could lead to WebAssembly control-flow integrity and type
  safety violations.
  GHSA-7qmx-3fpx-r45m

v22.0.1: Release Wasmtime 22.0.1 (#9364)

22.0.1

Released 2024-10-09.

Fixed

• Fix a runtime crash when combining tail-calls with host imports that capture a
  stack trace or trap.
  GHSA-q8hx-mm92-4wvg

• Fix a race condition could lead to WebAssembly control-flow integrity and type
  safety violations.
  GHSA-7qmx-3fpx-r45m