fix(compiler): cant call fromJson on imported structs

[hasanaburayyan]

Closes: #3792

Now supports calling fromJson on structs that were brought from other wing files

example:
file_1.w

struct Person {
	name: str;
}

file_2.w

bring "./file1.w" as f1;

let j = { name: "cool" };
f1.Person.fromJson(j);

Checklist

• Title matches Winglang's style guide
• Description explains motivation and solution
• Tests added (always)
• Docs updated (only required for features)
• Added pr/e2e-full label if this feature requires end-to-end testing

By submitting this pull request, I confirm that my contribution is made under the terms of the Wing Cloud Contribution License.

[mergify]

Thanks for contributing, @hasanaburayyan! This PR will now be added to the merge queue, or immediately merged if hasan/struct-conversion-multi-file is up-to-date with main and the queue is empty.

[monadabot]

Congrats! 🚀 This was released in Wing 0.25.45.