{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"//"}]}
        // Trivial case: we are fetching a statically known length.
    fn simplify_len(&mut self, place: &mut Place<'tcx>, location: Location) -> Option<VnIndex> {
        let place_ty = place.ty(self.local_decls, self.tcx).ty;