Rollup merge of #39267 - king6cong:master, r=steveklabnik

doc comment rewording

Author: GuillaumeGomez

src/librustc/hir/intravisit.rs

@@ -154,7 +154,7 @@ pub trait Visitor<'v> : Sized {
     /// hashed separately.
     ///
     /// **If for some reason you want the nested behavior, but don't
-    /// have a `Map` are your disposal:** then you should override the
+    /// have a `Map` at your disposal:** then you should override the
     /// `visit_nested_XXX` methods, and override this method to
     /// `panic!()`. This way, if a new `visit_nested_XXX` variant is
     /// added in the future, we will see the panic in your code and

src/librustc/hir/mod.rs

@@ -1014,7 +1014,7 @@ pub enum QPath {
     ///
     /// UFCS source paths can desugar into this, with `Vec::new` turning into
     /// `<Vec>::new`, and `T::X::Y::method` into `<<<T>::X>::Y>::method`,
-    /// the `X` and `Y` nodes being each a `TyPath(QPath::TypeRelative(..))`.
+    /// the `X` and `Y` nodes each being a `TyPath(QPath::TypeRelative(..))`.
     TypeRelative(P<Ty>, P<PathSegment>)
 }