"Extract struct from enum variant" drops code comments and attributes of members

[regexident]

The "Extract struct from enum variant" VSCode refactor drops

• comments
• doc comments
• attributes

Before:

pub enum Foo {
    Bar,
    Baz {
        // a comment
        /// a doc comment
        #[an_attribute]
        blee: bool
    }
}

After:

pub struct Baz{ pub blee: bool }

pub enum Foo {
    Bar,
    Baz(Baz)
}