Rollup merge of #80159 - jyn514:array, r=m-ou-se

Add array search aliases

Missed this in #80068. This one will really fix #46075.

The last alias especially I'm a little unsure about - maybe fuzzy search should be fixed in rustdoc instead? Happy to make that change although I'd have to figure out how.

r? ``@m-ou-se`` although cc ``@GuillaumeGomez`` for the search issue.

library/std/src/primitive_docs.rs

@@ -478,8 +478,10 @@ mod prim_unit {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_pointer {}
 
+#[doc(alias = "[]")]
+#[doc(alias = "[T;N]")] // unfortunately, rustdoc doesn't have fuzzy search for aliases
+#[doc(alias = "[T; N]")]
 #[doc(primitive = "array")]
-//
 /// A fixed-size array, denoted `[T; N]`, for the element type, `T`, and the
 /// non-negative compile-time constant size, `N`.
 ///