The tracking issue for this feature is: #73014

Adds a free default() function to the std::default module. This function just forwards to Default::default(), but may remove repetition of the word "default" from the call site.

Here is an example:

use std::default::default;

struct AppConfig {
    foo: FooConfig,
    bar: BarConfig,

struct FooConfig {
    foo: i32,

struct BarConfig {
    bar: f32,
    baz: u8,

fn main() {
    let options = AppConfig {
        foo: default(),
        bar: BarConfig {
            bar: 10.1,