📎 Add support for the defer attribute in import statements

[denbezrukov]

Description

The TC39 "Deferred Import Evaluation" proposal allows deferring the execution of imported modules until their properties are accessed. This optimizes performance by loading modules without executing them immediately. The syntax is:

import defer * as myModule from "my-module";

https://github.com/tc39/proposal-defer-import-eval/?tab=readme-ov-file

[ematipico]

Re-opening because there's still something missing.

For example, we don't know yet if

import type defer * as something from "foo"

Is correct or not, and we should at least test the case

[Conaclos]

I don't think it makes sense to combine defer with type...

[fireairforce]

@ah-yu so any progress on it? maybe i can make this complete again?

[ah-yu]

Hi @fireairforce I am not working on it since the previous PR was reverted, the regression no longer exsits. Feel free to take up this issue again if you're interested.

[fireairforce]

ok, i will finish this pr this weekend~