tinygo: add relative and absolute --dir options to wasmtime args

[ydnar]

This is a second stab at fixing the wasip1 and wasip2 --dir args to wasmtime.

[dgryski]

I think there is some code in the waisp1 or wasip2 branch that detects "something" (will need to double check) based on the first or last --dir option provided. Are we breaking anything else by effectively having two names for each directory in the module path here?

[ydnar]

I think there is some code in the waisp1 or wasip2 branch that detects "something" (will need to double check) based on the first or last --dir option provided. Are we breaking anything else by effectively having two names for each directory in the module path here?

It worked for the tests I ran. Did you discover anything?

[dgryski]

No, I was just wondering because I know I had issues with argument ordering. I didn't see any failures, but I can run my larger test corpus and see what falls out.

[aykevl]

@ydnar did you get any further with this PR?
You could try running the test locally (make test GOTESTPKGS=. GOTESTFLAGS="-v -run=Build"), maybe it'll give some more information as to what goes wrong?

[ydnar]

I haven't. I'll try that!