This commit moves the `traps` field of `FunctionInfo` into a section of the compiled artifact produced by Cranelift. This section is quite large and when previously encoded/decoded with `bincode` this can take quite some time to process. Traps are expected to be relatively rare and it's not necessarily the right tradeoff to spend so much time serializing/deserializing this data, so this commit offloads the section into a custom-encoded binary format located elsewhere in the compiled image. This is similar to #3240 in its goal which is to move very large pieces of metadata to their own sections to avoid decoding anything when we load a precompiled modules. This also has a small benefit that it's slightly more efficient storage for the trap information too, but that's a negligible benefit. This is part of #3230 to make loading modules fast.
Wasmtime Embedding API
The wasmtime crate is an embedding API of the wasmtime WebAssembly runtime.
This is intended to be used in Rust projects and provides a high-level API of
working with WebAssembly modules.
If you're interested in embedding wasmtime in other languages, you may wish to
take a look a the C embedding API instead!