Update Rust crate syn to 1.0.109

[renovate]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
syn	dependencies	patch	1.0.109	source

Test plan: CI should pass with updated dependencies. No review required: this is an automated dependency update PR.

---

Release Notes

dtolnay/syn (syn)

v1.0.109

Compare Source

v1.0.108

Compare Source

• Fix handling of unusual whitespace after escaped newlines in LitStr::value (#​1381, thanks @​ModProg)

v1.0.107

Compare Source

• Opt out of -Zrustdoc-scrape-examples on docs.rs for now

v1.0.106

Compare Source

• Documentation improvements

v1.0.105

Compare Source

• Improve parse errors related to dyn and impl type syntax (#​1245)

v1.0.104

Compare Source

• Add PathArguments::is_none()

v1.0.103

Compare Source

• Implement PartialOrd for Cursor (#​1236, #​1237, thanks @​CAD97)

v1.0.102

Compare Source

• More efficient internal representation for TokenBuffer (#​1223, thanks @​CAD97)
• Fix parsing of a left shift after macro metavariable in type position (#​1229)

v1.0.101

Compare Source

• Eliminate a bunch of redundant work done by LitStr::parse (#​1221)

v1.0.100

Compare Source

• Parse closures with explicit empty lifetime parameter list for<> || -> T {…} (#​1212, https://github.com/rust-lang/rust/issues/97362)
• Parse dyn* provisional syntax (#​1213, https://github.com/rust-lang/rust/issues/91611)
• Parse attributes on the "rest" pattern of a struct in pattern position, Struct { #[attr] .. } (#​1214)
• Parse static async and static async move closures (#​1215, https://github.com/rust-lang/rust/issues/62290)

v1.0.99

Compare Source

• Add categories and keywords to crates.io metadata

v1.0.98

Compare Source

• Format example code with rustfmt

v1.0.97

Compare Source

• Update examples

v1.0.96

Compare Source

• Add a punct_mut() method on syn::punctuated::Pair to return Option<&mut P> (#​1183)

v1.0.95

Compare Source

• Replace unicode-xid with unicode-ident crate: https://github.com/dtolnay/unicode-ident

v1.0.94

Compare Source

• Resolve some unused_macro_rules warnings

v1.0.93

Compare Source

• Fix compile error when Some means something unusual in the expression namespace of the scope where custom_keyword is invoked (#​1171, thanks @​zakarumych)

v1.0.92

Compare Source

• Make compatible with Miri's tag-raw-pointers mode (#​1166, thanks @​saethlin)

v1.0.91

Compare Source

• impl ToTokens for RangeLimits
• impl Parse for ExprAwait
• impl Parse for GenericMethodArgument
• impl Parse for MethodTurbofish

v1.0.90

Compare Source

• Update recommended exhaustive matching idiom to use non_exhaustive_omitted_patterns lint:

  match expr {
      Expr::Array(e) => {…}
      Expr::Assign(e) => {…}
      ...
      Expr::Yield(e) => {…}
  
      #[cfg_attr(test, deny(non_exhaustive_omitted_patterns))]
      _ => {/* some sane fallback */}
  }

v1.0.89

Compare Source

• Remove support for inner attributes on non-block expressions (#​1146, https://github.com/rust-lang/rust/pull/83312)
• Fix panic on comma after mut self in a bare fn type (#​1148)

v1.0.88

Compare Source

• Parse .. pattern in pattern of let (#​1136)
• Parse for<…> lifetime introducer on closures (#​1135)
• Reject postfix operators after cast (#​1117)
• Implement extra-traits for Nothing (#​1144)

v1.0.87

Compare Source

• Parse trait bounds containing associated constant constraint (#​1138)
• Change syntax of where-clauses on generic associated types (#​1071, https://github.com/rust-lang/rust/issues/89122)

---

Configuration

📅 Schedule: Branch creation - "on the 1st through 7th day of the month" in timezone America/Los_Angeles, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.