Function has_non_owning_mutable_access

pub fn has_non_owning_mutable_access<'tcx>(
    cx: &LateContext<'tcx>,
    iter_ty: Ty<'tcx>,
) -> bool

Check if a Ty<’_> of Iterator contains any mutable access to non-owning types by checking if it contains fields of mutable references or pointers, or references/pointers to non-Freeze types, or PhantomData types containing any of the previous. This can be used to check whether skipping iterating over an iterator will change its behavior.