Auto merge of rust-lang#128862 - cblh:fix/128855, r=scottmcm

fix:  rust-lang#128855 Ensure `Guard`'s `drop` method is removed at `opt-level=s` for `…

fix: rust-lang#128855

…Copy` types

Added `#[inline]` to the `drop` method in the `Guard` implementation to ensure that the method is removed by the compiler at optimization level `opt-level=s` for `Copy` types. This change aims to align the method's behavior with optimization expectations and ensure it does not affect performance.

r​? `@scottmcm`

core/src/array/mod.rs

@@ -889,6 +889,7 @@ impl<T> Guard<'_, T> {
 }
 
 impl<T> Drop for Guard<'_, T> {
+    #[inline]
     fn drop(&mut self) {
         debug_assert!(self.initialized <= self.array_mut.len());