Prevent losing typechain types when compiling a subset of contracts

[antico5]

When compiling a subset of contracts, only the generated artifacts were being passed to typechain, losing the types of any previously generated artifacts.

This PR changes that, so besides passing the current generated artifacts, it passes all available artifacts in the project.

I had to adapt the test cases a bit since apparently on windows the generated files have a different directory structure than in linux/mac when having multiple contracts.

Closes #6311

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🦋 Changeset detected

Latest commit: dd31e81

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@nomicfoundation/hardhat-typechain	Patch

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Name	Status	Preview	Comments	Updated (UTC)
hardhat	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 10, 2025 2:21pm

[ChristopherDedominici]

Cool solution, I like it!
The only downside is that we do have to generate types for all the contracts, even though only a portion is compiled, but I don’t see any other solution.

@alcuadrado wdyt?

[antico5]

Cool solution, I like it! The only downside is that we do have to generate types for all the contracts, even though only a portion is compiled, but I don’t see any other solution.

@alcuadrado wdyt?

I've checked typechain-ethers and there's no option to "merge" newly added artifacts into an existing type file (hardhat.d.ts). It just uses whatever is passed on allArtifacts