Macro dbg

macro_rules! dbg {
    () => { ... };
    ($val:expr $(,)?) => { ... };
    ($($val:expr),+ $(,)?) => { ... };
}

A copy of std’s dbg! macro that doesn’t do pretty printing.

This is nice because we usually want more compact output in this crate. Also, because we don’t import std’s prelude, we have to use std::dbg!. This macro definition makes it available as dbg!.