Add a runtime test for multiple versions

[jsturtevant]

When working on #781 I noticed there wasn't a runtime test that had versions in the wit files. This adds test for a wit file that has multiple versions for rust and csharp.

[jsturtevant]

the C# failure the following, looks like we might be missing the versioning info on the import.

EXEC : error : WebAssembly function imports must be unique [D:\a\wit-bindgen\wit-bindgen\target\runtime-tests\versions\csharp-foo\Foo.csproj]
System.Exception: WebAssembly function imports must be unique
at ILCompiler.ConfigurableWasmImportPolicy.AddWasmImport(String) + 0x117
at ILCompiler.ConfigurableWasmImportPolicy..ctor(IReadOnlyList`1, IReadOnlyList`1) + 0x2d4
at ILCompiler.Program.Run() + 0x161d

[jsturtevant]

This is waiting on release with bytecodealliance/wasmtime#7656 for rust tests. The c# should work after #791

[alexcrichton]

Oh if you'd like it's ok to use a git dependency on wasmtime to pull in fixes like that

[jsturtevant]

Oh if you'd like it's ok to use a git dependency on wasmtime to pull in fixes like that

sounds good, I will do that and drop the c# test until we get the other PR merged

[jsturtevant]

@alexcrichton updated, I had to move a few dependencies, a couple type changes and regenerate the adapter module

[jsturtevant]

opened #802 to update the dependencies and will rebase on top of that

[jsturtevant]

opened #802 to update the dependencies and will rebase on top of that

ends up that wasmtime 0.16.0 didn't have the required commit. I saw the date of the release which was after my commit went in but I guess it was from a branch a little further back in time.

wasmtime is only used as a dev dependency so I've moved it and made the required changes to the API.

[jsturtevant]

@alexcrichton up to you if you want to wait for a release for this or use the revision

[alexcrichton]

Looks good to me! Mind dropping the rev though in the dependency? I think the Cargo.lock entry should suffice for that

[jsturtevant]

Without the rev it will mean we will pull the tip of the main branch. I just tested it and this works but could cause issues down the line as the branch progresses?

[alexcrichton]

WIth a Cargo.lock that won't happen unless a cargo update is issued which by the time that happens Wasmtime 17 will be released and it should be good to use anywya