feat: support TypeScript code in eval flag

[rayrw]

fixes #162

This PR is my attempt to add support of TypeScript code in the eval flag.
Not sure if it's the correct approach. I've got inspired by the preEval function of repl.ts, so I tried doing something similar by using transformSync from @esbuild-kit/core-utils. After transforming it, I tried swapping the original TS code's argv with the transformed code.

There are still several things I'm not sure (e.g. the filePath parameter of transformSync).
Please guide me if I've done it wrong.

[privatenumber]

Thanks, I haven't played with it yet, but the code looks good.

Can you add a test with the --input-type flag to make sure module works expectedly?

Off the top of my head, maybe something like console.log(import.meta.url) or making sure this fails console.log(__dirname).

[rayrw]

@privatenumber Thanks for the quick replies!
Yeah, testing the --input-type flag sounds very useful.
I've compared the output between normal node cli and tsx, and added the test cases.
Hopefully it's the expected behavior (eval import.meta.url returns undefined under --input-type=module flag).