/// Returns `true` as long as there are more things to do.
///
/// This is used by [priroda](https://github.com/oli-obk/priroda)
+ ///
+ /// This is marked `#inline(always)` to work around adverserial codegen when `opt-level = 3`
+ #[inline(always)]
pub fn step(&mut self) -> InterpResult<'tcx, bool> {
if self.stack.is_empty() {
return Ok(false);