__moveinit__ and __del__

struct Pair:
    var x: Int
    var y: Int

    fn __init__(inout self, x: Int, y: Int):
        print("Running init")
        self.x = x
        self.y = y
    
    fn __moveinit__(inout self, owned existing: Self):
        print("move init")
        self.x = existing.x
        self.y = existing.x

    fn __copyinit__(inout self, existing: Self):
        print("copy init")
        self.x = existing.x
        self.y = existing.y

fn copy(owned pair: Pair) -> Pair:
    return pair

fn main():
    let p = Pair(1, 2)
    let moved = copy(p^)
    let moved2 = moved^

copy init
move init

struct Pair:
    # omitted
    fn __del__(owned self):
        print("deleted")

fn copy(owned pair: Pair) -> Pair:
    return pair

fn main():
    let p = Pair(1, 2)
    let moved = copy(p^)
    let moved2 = moved^

move init
move init
deleted