'main' panicked at 'internal error: entered unreachable code

[legendiguess]

Code to reproduce:

fn foo() -> i32 {
    let bar = {
        let b = 3;
        return b + 3;
    };

    // This code will never be executed
    let a = 3 + 4;
    a
}

Tested on mun v0.2.1