Rollup merge of rust-lang#154311 - GuillaumeGomez:fix-integer-doc-cfg, r=eggyal,tgross35

[libcore] Disable `doc(auto_cfg)` for integers trait impls

Fixes rust-lang#153655.

Thanks to rust-lang#153964, `doc(auto_cfg)` finally works as expected on impls. So now this fix works:

<img width="1000" height="806" alt="image" src="https://github.com/user-attachments/assets/f37da375-c2eb-4a7b-abf2-1fdd3a73e2bb" />

cc @eggyal

Author: JonathanBrouwer

library/core/src/fmt/num.rs

@@ -594,13 +594,15 @@ impl_Debug! {
 // Include wasm32 in here since it doesn't reflect the native pointer size, and
 // often cares strongly about getting a smaller code size.
 #[cfg(any(target_pointer_width = "64", target_arch = "wasm32"))]
+#[doc(auto_cfg = false)]
 mod imp {
     use super::*;
     impl_Display!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize; as u64 into display_u64);
     impl_Exp!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize; as u64 into exp_u64);
 }
 
 #[cfg(not(any(target_pointer_width = "64", target_arch = "wasm32")))]
+#[doc(auto_cfg = false)]
 mod imp {
     use super::*;
     impl_Display!(i8, u8, i16, u16, i32, u32, isize, usize; as u32 into display_u32);