Add hyperlinks to std::fs functions from std::path.

src/libstd/path.rs

@@ -1781,15 +1781,19 @@ impl Path {
  /// This function will traverse symbolic links to query information about the
  /// destination file.
  ///
- /// This is an alias to `fs::metadata`.
+ /// This is an alias to [`fs::metadata`].
+ ///
+ /// [`fs::metadata`]: ../fs/fn.metadata.html
  #[stable(feature = "path_ext", since = "1.5.0")]
  pub fn metadata(&self) -> io::Result<fs::Metadata> {
  fs::metadata(self)
  }
 
  /// Query the metadata about a file without following symlinks.
  ///
- /// This is an alias to `fs::symlink_metadata`.
+ /// This is an alias to [`fs::symlink_metadata`].
+ ///
+ /// [`fs::symlink_metadata`]: ../fs/fn.symlink_metadata.html
  #[stable(feature = "path_ext", since = "1.5.0")]
  pub fn symlink_metadata(&self) -> io::Result<fs::Metadata> {
  fs::symlink_metadata(self)
@@ -1798,15 +1802,19 @@ impl Path {
  /// Returns the canonical form of the path with all intermediate components
  /// normalized and symbolic links resolved.
  ///
- /// This is an alias to `fs::canonicalize`.
+ /// This is an alias to [`fs::canonicalize`].
+ ///
+ /// [`fs::canonicalize`]: ../fs/fn.canonicalize.html
  #[stable(feature = "path_ext", since = "1.5.0")]
  pub fn canonicalize(&self) -> io::Result<PathBuf> {
  fs::canonicalize(self)
  }
 
  /// Reads a symbolic link, returning the file that the link points to.
  ///
- /// This is an alias to `fs::read_link`.
+ /// This is an alias to [`fs::read_link`].
+ ///
+ /// [`fs::read_link`]: ../fs/fn.read_link.html
  #[stable(feature = "path_ext", since = "1.5.0")]
  pub fn read_link(&self) -> io::Result<PathBuf> {
  fs::read_link(self)
@@ -1817,7 +1825,9 @@ impl Path {
  /// The iterator will yield instances of `io::Result<DirEntry>`. New errors may
  /// be encountered after an iterator is initially constructed.
  ///
- /// This is an alias to `fs::read_dir`.
+ /// This is an alias to [`fs::read_dir`].
+ ///
+ /// [`fs::read_dir`]: ../fs/fn.read_dir.html
  #[stable(feature = "path_ext", since = "1.5.0")]
  pub fn read_dir(&self) -> io::Result<fs::ReadDir> {
  fs::read_dir(self)