This commit updates the various tooling used by wasmtime which has new updates to the module linking proposal. This is done primarily to sync with WebAssembly/module-linking#26. The main change implemented here is that wasmtime now supports creating instances from a set of values, nott just from instantiating a module. Additionally subtyping handling of modules with respect to imports is now properly handled by desugaring two-level imports to imports of instances. A number of small refactorings are included here as well, but most of them are in accordance with the changes to `wasmparser` and the updated binary format for module linking.
This is the wasmtime-environ crate, which contains the implementations
of the ModuleEnvironment and FuncEnvironment traits from
cranelift-wasm. They effectively
implement an ABI for basic wasm compilation that defines how linear memories
are allocated, how indirect calls work, and other details. They can be used
for JITing, native object files, or other purposes.