Auto merge of #103452 - notriddle:rollup-peewevm, r=notriddle

Rollup of 11 pull requests

Successful merges:

 - #100462 (Clarify `array::from_fn` documentation)
 - #101644 (Document surprising and dangerous fs::Permissions behaviour on Unix)
 - #103005 (kmc-solid: Handle errors returned by `SOLID_FS_ReadDir`)
 - #103140 (Add diagnostic for calling a function with the same name with unresolved Macro)
 - #103254 (rustdoc: do not filter out cross-crate `Self: Sized` bounds)
 - #103347 (bootstrap: also create rustc-src component in sysroot)
 - #103402 (Fix wrapped valid-range handling in ty_find_init_error)
 - #103414 (Pretty print lifetimes captured by RPIT)
 - #103424 (rustdoc: remove no-op CSS `.code-header { border-bottom: none }`)
 - #103434 (Use functions for jump-to-def-background rustdoc GUI test)
 - #103447 (`MaybeUninit`: use `assume_init_drop()` in the partially initialized array example)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 4 insertions, 0 deletions

diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs
index 04dd821efde..eae0e1c7618 100644
--- a/library/core/src/array/mod.rs
+++ b/library/core/src/array/mod.rs
@@ -32,6 +32,10 @@ pub use iter::IntoIter;
 /// # Example
 ///
 /// ```rust
+/// // type inference is helping us here, the way `from_fn` knows how many
+/// // elements to produce is the length of array down there: only arrays of
+/// // equal lengths can be compared, so the const generic parameter `N` is
+/// // inferred to be 5, thus creating array of 5 elements.
 /// let array = core::array::from_fn(|i| i);
 /// assert_eq!(array, [0, 1, 2, 3, 4]);
 /// ```