fun something() { }
fun something_else() { }

fun wrong() {
  let x = 12;
  let y = "hello";
  x = y; // should be an error
  y = x; // should be an error

  let z = 23;
  y = x = z; // should be an error

  something_else = something; // should be an error
}

// @expect-errors:
// | 7:4: cannot assign a value of type `string` to type `f64`
// | 8:4: cannot assign a value of type `f64` to type `string`
// | 11:4: cannot assign a value of type `f64` to type `string`
// | 13:2: cannot assign a new value to a function declaration