Misplace doc comments don't give a helpful error message

[asterite]

Aim

This code:

fn main() {
    /// Hello
    let x = 1;

}

Gives this error message:

Unexpected LineComment(" Hello", Some(Outer)), expected one of break, comptime, continue, for, if, {, }, expression, statement, InternedStatement

Expected Behavior

Instead, it should give a more helpful message saying that the doc comment doesn't document anything, and that it should be changed to a regular // comment.

Bug

The error message is not helpful.

To Reproduce

Workaround

None

Workaround Description

No response

Additional Context

No response

Project Impact

None

Blocker Context

No response

Nargo Version

No response

NoirJS Version

No response

Proving Backend Tooling & Version

No response

Would you like to submit a PR for this Issue?

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Support Needs

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