Anyone have a good idea on tackling the function pointer comparisons warning for nightly CI builds?

[clin1234]

warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
   --> src/impl_/pymethods.rs:380:12
    |
380 |         if traverse == Some(current_traverse) {
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the address of the same function can vary between different codegen units
    = note: furthermore, different functions could have the same address after being merged together
    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default

warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
   --> src/impl_/pymethods.rs:391:11
    |
391 |     while traverse == Some(current_traverse) {
    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the address of the same function can vary between different codegen units
    = note: furthermore, different functions could have the same address after being merged together
    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>

warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
   --> src/impl_/pymethods.rs:445:12
    |
445 |         if clear == Some(current_clear) {
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the address of the same function can vary between different codegen units
    = note: furthermore, different functions could have the same address after being merged together
    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>

warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
   --> src/impl_/pymethods.rs:457:11
    |
457 |     while clear == Some(current_clear) {
    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: the address of the same function can vary between different codegen units
    = note: furthermore, different functions could have the same address after being merged together
    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>

warning: `pyo3` (lib) generated 5 warnings (run `cargo fix --lib -p pyo3` to apply 1 suggestion)

In CI builds, they become errors, and this causes build failures since the 2024-12-21 build of the nightly compiler

[Icxolu]

I fixed it in #4816