Rollup merge of rust-lang#75699 - notriddle:drop-bounds-lint, r=petrochenkov

Uplift drop-bounds lint from clippy

Bounds on `T: Drop` do nothing, so they should warn.

Author: JohnTitor

core/src/mem/mod.rs

@@ -568,6 +568,7 @@ pub unsafe fn align_of_val_raw<T: ?Sized>(val: *const T) -> usize {
 #[inline]
 #[stable(feature = "needs_drop", since = "1.21.0")]
 #[rustc_const_stable(feature = "const_needs_drop", since = "1.36.0")]
+#[rustc_diagnostic_item = "needs_drop"]
 pub const fn needs_drop<T>() -> bool {
     intrinsics::needs_drop::<T>()
 }