chore: Fix some warnings with latest stable.

Author: emilio

bindgen/clang.rs

@@ -945,7 +945,7 @@ impl Cursor {
  }
 
  /// Gets the tokens that correspond to that cursor.
- pub(crate) fn tokens(&self) -> RawTokens {
+ pub(crate) fn tokens(&self) -> RawTokens<'_> {
  RawTokens::new(self)
  }
 
@@ -1006,7 +1006,7 @@ impl<'a> RawTokens<'a> {
  }
 
  /// Get an iterator over these tokens.
- pub(crate) fn iter(&self) -> ClangTokenIterator {
+ pub(crate) fn iter(&self) -> ClangTokenIterator<'_> {
  ClangTokenIterator {
  tu: self.tu,
  raw: self.as_slice().iter(),

bindgen/ir/context.rs

@@ -1228,7 +1228,7 @@ If you encounter an error missing from this list, please file an issue or a PR!"
 
  fn assert_no_dangling_item_traversal(
  &self,
- ) -> traversal::AssertNoDanglingItemsTraversal {
+ ) -> traversal::AssertNoDanglingItemsTraversal<'_> {
  assert!(self.in_codegen_phase());
  assert_eq!(self.current_module, self.root_module);
 

bindgen/ir/ty.rs

@@ -243,7 +243,7 @@ impl Type {
  }
 
  /// Takes `name`, and returns a suitable identifier representation for it.
- fn sanitize_name(name: &str) -> Cow<str> {
+ fn sanitize_name(name: &str) -> Cow<'_, str> {
  if clang::is_valid_identifier(name) {
  return Cow::Borrowed(name);
  }

bindgen/lib.rs

@@ -980,7 +980,7 @@ impl Bindings {
  }
 
  /// Gets the rustfmt path to rustfmt the generated bindings.
- fn rustfmt_path(&self) -> io::Result<Cow<PathBuf>> {
+ fn rustfmt_path(&self) -> io::Result<Cow<'_, PathBuf>> {
  debug_assert!(matches!(self.options.formatter, Formatter::Rustfmt));
  if let Some(ref p) = self.options.rustfmt_path {
  return Ok(Cow::Borrowed(p));