feat: add support for Import Attributes and RegExp Modifiers

[ota-meshi]

Prerequisites checklist

• I have read the contributing guidelines.

What is the purpose of this pull request?

Add support for ES2025 import attributes, and add support for RegExp modifiers.

What changes did you make? (Give an overview)

This PR adds support for ES2025 import attributes and RegExp modifiers.

Related Issues

Related to eslint/eslint#19014, eslint/eslint#19073

Is there anything you'd like reviewers to focus on?

[nzakas]

LGTM. Waiting for another approval before merging.

[mdjermanovic]

Are there any changes to eslint-scope needed?

If not, can you just add a few tests to confirm? For example:

const type = "json";

import pkg from "./package.json" with { type: "json" }; // not a reference to `type`

export * from "./package.json" with { type: "json" }; // not a reference to `type`

export { default } from "./package.json" with { type: "json" }; // not a reference to `type`

import("./package.json", { with: { type } }); // a reference to `type`

[ota-meshi]

Thank you for the review!
I didn't notice that. I will test it and fix it 😄

[ota-meshi]

I added test cases to eslint-scope.
However, eslint-scope seems to work fine already, probably because the ImportAttribute node's visitor is not defined, so it doesn't get processed.

[mdjermanovic]

However, eslint-scope seems to work fine already

Yeah, I double-checked the code.

ImportDeclaration is special-handled. It will traverse ImportAttribute nodes and their Identifier nodes but not consider them as references.

ExportNamedDeclaration and ExportAllDeclaration will be just skipped if they have source.

For ImportExpression, eslint-scope doesn't specify a visitor so by default all child nodes will be traversed (esrecurse)

[mdjermanovic]

LGTM, thanks!