fix broken intradoclinks

compiler/rustc_data_structures/src/aligned.rs

@@ -4,6 +4,8 @@ use std::ptr::Alignment;
 ///
 /// This is equivalent to [`mem::align_of`], but also works for some unsized
 /// types (e.g. slices or rustc's `List`s).
+///
+/// [`mem::align_of`]: std::mem::align_of
 pub const fn align_of<T: ?Sized + Aligned>() -> Alignment {
     T::ALIGN
 }
@@ -16,7 +18,7 @@ pub const fn align_of<T: ?Sized + Aligned>() -> Alignment {
 /// is [`mem::align_of<Self>()`], for unsized types it depends on the type, for
 /// example `[T]` has alignment of `T`.
 ///
-/// [`mem::align_of<Self>()`]: mem::align_of
+/// [`mem::align_of<Self>()`]: std::mem::align_of
 pub unsafe trait Aligned {
     /// Alignment of `Self`.
     const ALIGN: Alignment;