Impl Parse for PatType

[dtolnay]

This makes PatType work with parse_quote!. Useful for initializing the left-hand side of a Local, or a FnArg::Typed.

Closes #1554.

// [dependencies]
// syn = { version = "2", features = ["full", "extra-traits"] }

use syn::{parse_quote, PatType};

fn main() {
    let pat: PatType = parse_quote! { ptr: usize };
    println!("{:#?}", pat);
}