Merging upstream version 1.76.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 138 insertions, 44 deletions

diff --git a/vendor/syn/.cargo-checksum.json b/vendor/syn/.cargo-checksum.json
index 395cafc9d..ffbe76500 100644
--- a/vendor/syn/.cargo-checksum.json
+++ b/vendor/syn/.cargo-checksum.json
@@ -1 +1 @@
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\ No newline at end of file
+{"files":{"Cargo.toml":"f47dd3099b90161054b6b694a5e6307429c94e54f04df2683537a0cd1dfb4ee0","LICENSE-APACHE":"62c7a1e35f56406896d7aa7ca52d0cc0d272ac022b5d2796e7d6905db8a3636a","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"f6904878f9082d7d267b6d0d737ef211ff165cfd039a4d45ad88e9861f3e217f","benches/file.rs":"0a0527c78d849148cbb6118b4d36f72da7d4add865ba1a410e0a1be9e8dbfe0e","benches/rust.rs":"c006f01aacf95f61e5d6f4064be4040896a37a9632fb3dcfd9bc2a7ab171741d","src/attr.rs":"bd5ffae18a363162f7d9c12a1b6c1d023070cbf1b060c98ebc38ef79f1de9c67","src/bigint.rs":"0299829b2f7a1a798fe2f7bc1680e4a10f9b6f4a852d09af4da2deab466c4242","src/buffer.rs":"3ef1c3302acc4f9976484fd11c28981a5ff245cf4f3b8b888b7f065c8614881e","src/custom_keyword.rs":"b2e25cbe73d237b459140a38083ee21e4836ea444859b033f400652414630290","src/custom_punctuation.rs":"c2c344c9cdbebc66a5833eb0f9ded817ce9807dbb75b616283b2b60960d1ffb0","src/data.rs":"09ce487d27f7dd79031b390c8344fc6361d64b05064ee25dba1489cf3aa56128","src/derive.rs":"3132e7f064725c7ca43f26daee93ec78037d46a935c6b0758af905cff450c15c","src/discouraged.rs":"482970b03bdee3cbc30c034f644e3293b25387db46300da5d8d8efd97dad8507","src/drops.rs":"013385f1dd95663f1afab41abc1e2eea04181998644828935ca564c74d6462ae","src/error.rs":"8dbb17978f688e12bcce58232f05c0ca9ed9de1fe511440793fb958da2fc93b9","src/export.rs":"b260cc49da1da3489e7755832bc8015cfad79e84f6c74e237f65ae25a2385e56","src/expr.rs":"4260279c392b594e36cee9709f668ebccb9a7be69192e24734341e6b3189374c","src/ext.rs":"3cf2d869812e5be894aa1c48bf074da262143fb2df1c9ac1b5ee965bf2a96a1c","src/file.rs":"a4d510dd0e2756bd54983dfa747601918c801e987cbf92deab44cdca6a201aeb","src/gen/clone.rs":"46540509dc99bb849014948a0c5b02ea372d5feceae5ea391c29f226f06516eb","src/gen/debug.rs":"32b2076b755f021428a0fb268a94057e1bcb1cd400feb895946703d7919b843a","src/gen/eq.rs":"aa5455b2cc0d9846d119ce001e821872df911f65133b993e3801a42e8f635f2a","src/gen/fold.rs":"305fe1db2b5b7039e79104a6e8ead11b1ee3c009f31f2a2bbebca10e494188cd","src/gen/hash.rs":"4ca8239c681ea5fd7b16bb61bff9034bff09680c088f5a16e90e99013e55742f","src/gen/visit.rs":"cbd0ebe18da62614c66a7900ef67350a5efee261bcdfff6cffc1ea6c4e754e34","src/gen/visit_mut.rs":"1b2a260ab3a6465eed6164f6d2c0cec977f9c3ca912f6bed81f8599b4d8f5cb0","src/gen_helper.rs":"750caab67ba0ba11a95ea28cd38026485227bb4aa114cdb497472386f60fdb35","src/generics.rs":"cb1a0374c523a469d48b1db7316166559034d437fb4f6cc5661511edb8aba32c","src/group.rs":"f5911e9cf2dc2dffab546590167c48de30409cb7708aa3307d22be143df720e4","src/ident.rs":"1b2d86d2e380b1fa83aee6ed113c47f0b482a229c25be428dac921deec0b4852","src/item.rs":"00ae729a00854f15203dbcbf2251910658eb052130de243144dcbec68be37919","src/lib.rs":"254307de790ddbdad664bd7507b91443edb287f1245c09c3a550ccf8882ad92e","src/lifetime.rs":"64abfd72af5dd271b2de1a8304ca0899b90da7750df9dec2ee8102bceb08a426","src/lit.rs":"3a70ebbc81563b967d2cbf589b6980a5b202ee3379d5d401e01a4c2af124d7ae","src/lookahead.rs":"376092f91a1c32e1b277db0a6790fdda151c9ec51bd971fe6a6545b5b9e73b5d","src/mac.rs":"b1cf73f34a27a8f1429125e726623a524fb5dce875eb68ead3beaffa976442c3","src/macros.rs":"64fce3fda990306cfae5f0409918946ff7c9e98ecad963932e6c1436c0b0d4c2","src/meta.rs":"9df61ebaa405ef743ba1629b39ee5e806f9ead77694a1027f192da860270c83d","src/op.rs":"fe5db7c3373b956234ea8a1a7d129a06e5aef5db77c44c1c2fedb4aaa667ac56","src/parse.rs":"4d6c7935de1c2762ddb20ddf8e0b3de934e5ca26143aa8ba3a7fcc09f8c91893","src/parse_macro_input.rs":"4a753b2a6dbfefd6dc93852d66b4f6d73ebd6b8b9be74019fc476f429b9a892d","src/parse_quote.rs":"08c8f4eaedeffaac73170b59921d140f63f4a01c243993dff050b4b848d0ac1f","src/pat.rs":"4d99c5ed6a08e6adfd0f6c31438befd3f03e48982a36bb2544962d9db7805a4a","src/path.rs":"8079943ec924ad5338e4bfa16b15b8ea0d6d27092396b62667eadcd0b98f20db","src/print.rs":"22910bf0521ab868ebd7c62601c55912d12cfb400c65723e08e5cfa3a2d111c0","src/punctuated.rs":"dffaab15b9215c70d7db416e8d4c44b78c43ba2f255485e6211363f0f0fea063","src/restriction.rs":"62efbc127d7e7316dd1070c0e976872de6238b2602bba1fb35df18511b4e7199","src/sealed.rs":"6ece3b3dcb30f6bb98b93d83759ca7712ee8592bef9c0511141039c38765db0e","src/span.rs":"0a48e375e5c9768f6f64174a91ba6a255f4b021e2fb3548d8494e617f142601b","src/spanned.rs":"1bba75d73dd4dc5be6c4e11fdd72686d340fb25b5808830bd603ddc840beabdc","src/stmt.rs":"321d445f681c46ac30644504df2a8afc333a1dde0371159e9e077a17eed16548","src/thread.rs":"1f1deb1272525ab2af9a36aac4bce8f65b0e315adb1656641fd7075662f49222","src/token.rs":"e6b2373fb0465158d267bd25eac16266bd4b492d7dbe8ae4b5405a841a1ac57d","src/tt.rs":"32490509abcc4a5a3c7eb5628337172b3b49d30697d2f7b7df4d8045255c13da","src/ty.rs":"1d11c614298f25a8fa42165a01d6545fc699a446d7f3f8630162c7f478b26886","src/verbatim.rs":"87cbe82a90f48efb57ffd09141042698b3e011a21d0d5412154d80324b0a5ef0","src/whitespace.rs":"718a80c12cdd145358e2690f0f68ff7779a91ec17ce9fde9bb755f635fce69ad","tests/common/eq.rs":"147342055d118d8ec7c64ea6b0224e61c4ac058e7395058f379668b07fe99345","tests/common/mod.rs":"432ad35577f836a20b517d8c26ed994a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\ No newline at end of file
diff --git a/vendor/syn/Cargo.toml b/vendor/syn/Cargo.toml
index a0e56c526..56cf07e4f 100644
--- a/vendor/syn/Cargo.toml
+++ b/vendor/syn/Cargo.toml
@@ -13,7 +13,7 @@
 edition = "2021"
 rust-version = "1.56"
 name = "syn"
-version = "2.0.38"
+version = "2.0.39"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 include = [
     "/benches/**",
diff --git a/vendor/syn/src/custom_keyword.rs b/vendor/syn/src/custom_keyword.rs
index 9f3ad8702..6ce23db41 100644
--- a/vendor/syn/src/custom_keyword.rs
+++ b/vendor/syn/src/custom_keyword.rs
@@ -128,7 +128,7 @@ macro_rules! custom_keyword {
 macro_rules! impl_parse_for_custom_keyword {
     ($ident:ident) => {
         // For peek.
-        impl $crate::token::CustomToken for $ident {
+        impl $crate::__private::CustomToken for $ident {
             fn peek(cursor: $crate::buffer::Cursor) -> $crate::__private::bool {
                 if let $crate::__private::Some((ident, _rest)) = cursor.ident() {
                     ident == $crate::__private::stringify!($ident)
diff --git a/vendor/syn/src/custom_punctuation.rs b/vendor/syn/src/custom_punctuation.rs
index 062fe5169..1b2c768f4 100644
--- a/vendor/syn/src/custom_punctuation.rs
+++ b/vendor/syn/src/custom_punctuation.rs
@@ -113,7 +113,7 @@ macro_rules! custom_punctuation {
 #[macro_export]
 macro_rules! impl_parse_for_custom_punctuation {
     ($ident:ident, $($tt:tt)+) => {
-        impl $crate::token::CustomToken for $ident {
+        impl $crate::__private::CustomToken for $ident {
             fn peek(cursor: $crate::buffer::Cursor) -> $crate::__private::bool {
                 $crate::__private::peek_punct(cursor, $crate::stringify_punct!($($tt)+))
             }
diff --git a/vendor/syn/src/export.rs b/vendor/syn/src/export.rs
index febd322e1..b9ea5c747 100644
--- a/vendor/syn/src/export.rs
+++ b/vendor/syn/src/export.rs
@@ -57,6 +57,10 @@ pub use crate::token::parsing::{peek_punct, punct as parse_punct};
 #[doc(hidden)]
 pub use crate::token::printing::punct as print_punct;
 
+#[cfg(feature = "parsing")]
+#[doc(hidden)]
+pub use crate::token::private::CustomToken;
+
 #[cfg(feature = "proc-macro")]
 #[doc(hidden)]
 pub type TokenStream = proc_macro::TokenStream;
diff --git a/vendor/syn/src/expr.rs b/vendor/syn/src/expr.rs
index ae723242e..22400be32 100644
--- a/vendor/syn/src/expr.rs
+++ b/vendor/syn/src/expr.rs
@@ -957,6 +957,8 @@ pub(crate) fn requires_terminator(expr: &Expr) -> bool {
 #[cfg(feature = "parsing")]
 pub(crate) mod parsing {
     use super::*;
+    #[cfg(feature = "full")]
+    use crate::ext::IdentExt;
     use crate::parse::discouraged::Speculative;
     #[cfg(feature = "full")]
     use crate::parse::ParseBuffer;
@@ -1156,6 +1158,25 @@ pub(crate) mod parsing {
     }
 
     #[cfg(feature = "full")]
+    fn can_begin_expr(input: ParseStream) -> bool {
+        input.peek(Ident::peek_any) // value name or keyword
+            || input.peek(token::Paren) // tuple
+            || input.peek(token::Bracket) // array
+            || input.peek(token::Brace) // block
+            || input.peek(Lit) // literal
+            || input.peek(Token![!]) && !input.peek(Token![!=]) // operator not
+            || input.peek(Token![-]) && !input.peek(Token![-=]) && !input.peek(Token![->]) // unary minus
+            || input.peek(Token![*]) && !input.peek(Token![*=]) // dereference
+            || input.peek(Token![|]) && !input.peek(Token![|=]) // closure
+            || input.peek(Token![&]) && !input.peek(Token![&=]) // reference
+            || input.peek(Token![..]) // range notation
+            || input.peek(Token![<]) && !input.peek(Token![<=]) && !input.peek(Token![<<=]) // associated path
+            || input.peek(Token![::]) // global path
+            || input.peek(Lifetime) // labeled loop
+            || input.peek(Token![#]) // expression attributes
+    }
+
+    #[cfg(feature = "full")]
     fn parse_expr(
         input: ParseStream,
         mut lhs: Expr,
@@ -1614,7 +1635,7 @@ pub(crate) mod parsing {
         } else if input.peek(Token![continue]) {
             input.parse().map(Expr::Continue)
         } else if input.peek(Token![return]) {
-            expr_ret(input, allow_struct).map(Expr::Return)
+            expr_return(input, allow_struct).map(Expr::Return)
         } else if input.peek(token::Bracket) {
             array_or_repeat(input)
         } else if input.peek(Token![let]) {
@@ -2223,7 +2244,7 @@ pub(crate) mod parsing {
     impl Parse for ExprReturn {
         fn parse(input: ParseStream) -> Result<Self> {
             let allow_struct = AllowStruct(true);
-            expr_ret(input, allow_struct)
+            expr_return(input, allow_struct)
         }
     }
 
@@ -2247,7 +2268,7 @@ pub(crate) mod parsing {
                 attrs: Vec::new(),
                 yield_token: input.parse()?,
                 expr: {
-                    if !input.is_empty() && !input.peek(Token![,]) && !input.peek(Token![;]) {
+                    if can_begin_expr(input) {
                         Some(input.parse()?)
                     } else {
                         None
@@ -2442,34 +2463,46 @@ pub(crate) mod parsing {
 
     #[cfg(feature = "full")]
     fn expr_break(input: ParseStream, allow_struct: AllowStruct) -> Result<ExprBreak> {
+        let break_token: Token![break] = input.parse()?;
+
+        let ahead = input.fork();
+        let label: Option<Lifetime> = ahead.parse()?;
+        if label.is_some() && ahead.peek(Token![:]) {
+            // Not allowed: `break 'label: loop {...}`
+            // Parentheses are required. `break ('label: loop {...})`
+            let _ = ambiguous_expr(input, allow_struct)?;
+            let start_span = label.unwrap().apostrophe;
+            let end_span = input.cursor().prev_span();
+            return Err(crate::error::new2(
+                start_span,
+                end_span,
+                "parentheses required",
+            ));
+        }
+
+        input.advance_to(&ahead);
+        let expr = if can_begin_expr(input) && (allow_struct.0 || !input.peek(token::Brace)) {
+            let expr = ambiguous_expr(input, allow_struct)?;
+            Some(Box::new(expr))
+        } else {
+            None
+        };
+
         Ok(ExprBreak {
             attrs: Vec::new(),
-            break_token: input.parse()?,
-            label: input.parse()?,
-            expr: {
-                if input.is_empty()
-                    || input.peek(Token![,])
-                    || input.peek(Token![;])
-                    || !allow_struct.0 && input.peek(token::Brace)
-                {
-                    None
-                } else {
-                    let expr = ambiguous_expr(input, allow_struct)?;
-                    Some(Box::new(expr))
-                }
-            },
+            break_token,
+            label,
+            expr,
         })
     }
 
     #[cfg(feature = "full")]
-    fn expr_ret(input: ParseStream, allow_struct: AllowStruct) -> Result<ExprReturn> {
+    fn expr_return(input: ParseStream, allow_struct: AllowStruct) -> Result<ExprReturn> {
         Ok(ExprReturn {
             attrs: Vec::new(),
             return_token: input.parse()?,
             expr: {
-                if input.is_empty() || input.peek(Token![,]) || input.peek(Token![;]) {
-                    None
-                } else {
+                if can_begin_expr(input) {
                     // NOTE: return is greedy and eats blocks after it even when in a
                     // position where structs are not allowed, such as in if statement
                     // conditions. For example:
@@ -2477,6 +2510,8 @@ pub(crate) mod parsing {
                     // if return { println!("A") } {} // Prints "A"
                     let expr = ambiguous_expr(input, allow_struct)?;
                     Some(Box::new(expr))
+                } else {
+                    None
                 }
             },
         })
diff --git a/vendor/syn/src/lib.rs b/vendor/syn/src/lib.rs
index a74d4b117..a3df727a9 100644
--- a/vendor/syn/src/lib.rs
+++ b/vendor/syn/src/lib.rs
@@ -249,7 +249,7 @@
 //!   dynamic library libproc_macro from rustc toolchain.
 
 // Syn types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/syn/2.0.38")]
+#![doc(html_root_url = "https://docs.rs/syn/2.0.39")]
 #![cfg_attr(doc_cfg, feature(doc_cfg))]
 #![allow(non_camel_case_types)]
 #![allow(
@@ -265,6 +265,7 @@
     clippy::explicit_auto_deref,
     clippy::if_not_else,
     clippy::inherent_to_string,
+    clippy::into_iter_without_iter,
     clippy::items_after_statements,
     clippy::large_enum_variant,
     clippy::let_underscore_untyped, // https://github.com/rust-lang/rust-clippy/issues/10410
@@ -811,6 +812,8 @@ mod gen {
     #[path = "../gen_helper.rs"]
     mod helper;
 }
+
+#[cfg(any(feature = "fold", feature = "visit", feature = "visit-mut"))]
 pub use crate::gen::*;
 
 // Not public API.
diff --git a/vendor/syn/src/parse.rs b/vendor/syn/src/parse.rs
index 5a2aeb628..50fe110b5 100644
--- a/vendor/syn/src/parse.rs
+++ b/vendor/syn/src/parse.rs
@@ -513,8 +513,8 @@ impl<'a> ParseBuffer<'a> {
     ///
     /// - `input.peek(Token![struct])`
     /// - `input.peek(Token![==])`
-    /// - `input.peek(Ident)`&emsp;*(does not accept keywords)*
-    /// - `input.peek(Ident::peek_any)`
+    /// - `input.peek(syn::Ident)`&emsp;*(does not accept keywords)*
+    /// - `input.peek(syn::Ident::peek_any)`
     /// - `input.peek(Lifetime)`
     /// - `input.peek(token::Brace)`
     ///
diff --git a/vendor/syn/src/token.rs b/vendor/syn/src/token.rs
index af7f25c42..05d8f5601 100644
--- a/vendor/syn/src/token.rs
+++ b/vendor/syn/src/token.rs
@@ -88,6 +88,8 @@
 //! [Printing]: https://docs.rs/quote/1.0/quote/trait.ToTokens.html
 //! [`Span`]: https://docs.rs/proc-macro2/1.0/proc_macro2/struct.Span.html
 
+#[cfg(feature = "parsing")]
+pub(crate) use self::private::CustomToken;
 use self::private::WithSpan;
 #[cfg(feature = "parsing")]
 use crate::buffer::Cursor;
@@ -134,7 +136,9 @@ pub trait Token: private::Sealed {
     fn display() -> &'static str;
 }
 
-mod private {
+pub(crate) mod private {
+    #[cfg(feature = "parsing")]
+    use crate::buffer::Cursor;
     use proc_macro2::Span;
 
     #[cfg(feature = "parsing")]
@@ -147,6 +151,14 @@ mod private {
     pub struct WithSpan {
         pub span: Span,
     }
+
+    // Not public API.
+    #[doc(hidden)]
+    #[cfg(feature = "parsing")]
+    pub trait CustomToken {
+        fn peek(cursor: Cursor) -> bool;
+        fn display() -> &'static str;
+    }
 }
 
 #[cfg(feature = "parsing")]
@@ -218,14 +230,6 @@ impl_low_level_token!("punctuation token" Punct punct);
 impl_low_level_token!("literal" Literal literal);
 impl_low_level_token!("token" TokenTree token_tree);
 
-// Not public API.
-#[doc(hidden)]
-#[cfg(feature = "parsing")]
-pub trait CustomToken {
-    fn peek(cursor: Cursor) -> bool;
-    fn display() -> &'static str;
-}
-
 #[cfg(feature = "parsing")]
 impl<T: CustomToken> private::Sealed for T {}
 
diff --git a/vendor/syn/tests/common/eq.rs b/vendor/syn/tests/common/eq.rs
index 3c2b1c124..8e334c330 100644
--- a/vendor/syn/tests/common/eq.rs
+++ b/vendor/syn/tests/common/eq.rs
@@ -65,6 +65,7 @@ use rustc_ast::ast::FormatOptions;
 use rustc_ast::ast::FormatPlaceholder;
 use rustc_ast::ast::FormatSign;
 use rustc_ast::ast::FormatTrait;
+use rustc_ast::ast::GenBlockKind;
 use rustc_ast::ast::GenericArg;
 use rustc_ast::ast::GenericArgs;
 use rustc_ast::ast::GenericBound;
@@ -545,6 +546,7 @@ spanless_eq_enum!(FormatCount; Literal(0) Argument(0));
 spanless_eq_enum!(FormatDebugHex; Lower Upper);
 spanless_eq_enum!(FormatSign; Plus Minus);
 spanless_eq_enum!(FormatTrait; Display Debug LowerExp UpperExp Octal Pointer Binary LowerHex UpperHex);
+spanless_eq_enum!(GenBlockKind; Async Gen);
 spanless_eq_enum!(GenericArg; Lifetime(0) Type(0) Const(0));
 spanless_eq_enum!(GenericArgs; AngleBracketed(0) Parenthesized(0));
 spanless_eq_enum!(GenericBound; Trait(0 1) Outlives(0));
@@ -582,7 +584,7 @@ spanless_eq_enum!(WherePredicate; BoundPredicate(0) RegionPredicate(0) EqPredica
 spanless_eq_enum!(ExprKind; Array(0) ConstBlock(0) Call(0 1) MethodCall(0)
     Tup(0) Binary(0 1 2) Unary(0 1) Lit(0) Cast(0 1) Type(0 1) Let(0 1 2 3)
     If(0 1 2) While(0 1 2) ForLoop(0 1 2 3) Loop(0 1 2) Match(0 1) Closure(0)
-    Block(0 1) Async(0 1) Await(0 1) TryBlock(0) Assign(0 1 2) AssignOp(0 1 2)
+    Block(0 1) Gen(0 1 2) Await(0 1) TryBlock(0) Assign(0 1 2) AssignOp(0 1 2)
     Field(0 1) Index(0 1 2) Underscore Range(0 1 2) Path(0 1) AddrOf(0 1 2)
     Break(0 1) Continue(0) Ret(0) InlineAsm(0) OffsetOf(0 1) MacCall(0)
     Struct(0) Repeat(0 1) Paren(0) Try(0) Yield(0) Yeet(0) Become(0)
diff --git a/vendor/syn/tests/repo/mod.rs b/vendor/syn/tests/repo/mod.rs
index 61d5ff35f..9d5dfa2f7 100644
--- a/vendor/syn/tests/repo/mod.rs
+++ b/vendor/syn/tests/repo/mod.rs
@@ -13,12 +13,14 @@ use std::path::{Path, PathBuf};
 use tar::Archive;
 use walkdir::{DirEntry, WalkDir};
 
-const REVISION: &str = "9f5fc1bd443f59583e7af0d94d289f95fe1e20c4";
+const REVISION: &str = "a2f5f9691b6ce64c1703feaf9363710dfd7a56cf";
 
 #[rustfmt::skip]
 static EXCLUDE_FILES: &[&str] = &[
     // TODO: CStr literals: c"…", cr"…"
     // https://github.com/dtolnay/syn/issues/1502
+    "src/tools/clippy/tests/ui/needless_raw_string.rs",
+    "src/tools/clippy/tests/ui/needless_raw_string_hashes.rs",
     "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/0085_expr_literals.rs",
 
     // TODO: explicit tail calls: `become _g()`
@@ -27,7 +29,12 @@ static EXCLUDE_FILES: &[&str] = &[
 
     // TODO: non-lifetime binders: `where for<'a, T> &'a Struct<T>: Trait`
     // https://github.com/dtolnay/syn/issues/1435
+    "src/tools/rustfmt/tests/source/issue_5721.rs",
+    "src/tools/rustfmt/tests/source/non-lifetime-binders.rs",
+    "src/tools/rustfmt/tests/target/issue_5721.rs",
+    "src/tools/rustfmt/tests/target/non-lifetime-binders.rs",
     "tests/rustdoc-json/non_lifetime_binders.rs",
+    "tests/rustdoc/inline_cross/auxiliary/non_lifetime_binders.rs",
     "tests/rustdoc/non_lifetime_binders.rs",
 
     // TODO: return type notation: `where T: Trait<method(): Send>`
@@ -36,6 +43,19 @@ static EXCLUDE_FILES: &[&str] = &[
     "tests/ui/associated-type-bounds/return-type-notation/basic.rs",
     "tests/ui/feature-gates/feature-gate-return_type_notation.rs",
 
+    // TODO: lazy type alias syntax with where-clause in trailing position
+    // https://github.com/dtolnay/syn/issues/1525
+    "tests/rustdoc/typedef-inner-variants-lazy_type_alias.rs",
+
+    // TODO: gen blocks and functions
+    // https://github.com/dtolnay/syn/issues/1526
+    "tests/ui/coroutine/gen_block_is_iter.rs",
+    "tests/ui/coroutine/gen_block_iterate.rs",
+
+    // TODO: struct literal in match guard
+    // https://github.com/dtolnay/syn/issues/1527
+    "tests/ui/parser/struct-literal-in-match-guard.rs",
+
     // Compile-fail expr parameter in const generic position: f::<1 + 2>()
     "tests/ui/const-generics/early/closing-args-token.rs",
     "tests/ui/const-generics/early/const-expression-parameter.rs",
@@ -108,9 +128,6 @@ static EXCLUDE_FILES: &[&str] = &[
     "tests/ui/lifetimes/bare-trait-object.rs",
     "tests/ui/parser/bounds-obj-parens.rs",
 
-    // Obsolete box syntax
-    "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/0132_box_expr.rs",
-
     // Invalid unparenthesized range pattern inside slice pattern: `[1..]`
     "tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.rs",
 
diff --git a/vendor/syn/tests/test_expr.rs b/vendor/syn/tests/test_expr.rs
index 5d529bf14..2574ea548 100644
--- a/vendor/syn/tests/test_expr.rs
+++ b/vendor/syn/tests/test_expr.rs
@@ -1,11 +1,11 @@
-#![allow(clippy::uninlined_format_args)]
+#![allow(clippy::single_element_loop, clippy::uninlined_format_args)]
 
 #[macro_use]
 mod macros;
 
 use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree};
 use quote::quote;
-use syn::{Expr, ExprRange};
+use syn::{Expr, ExprRange, Stmt};
 
 #[test]
 fn test_expr_parse() {
@@ -310,3 +310,32 @@ fn test_ranges() {
     syn::parse_str::<Expr>("lo...").unwrap_err();
     syn::parse_str::<Expr>("lo...hi").unwrap_err();
 }
+
+#[test]
+fn test_ambiguous_label() {
+    for stmt in [
+        quote! {
+            return 'label: loop { break 'label 42; };
+        },
+        quote! {
+            break ('label: loop { break 'label 42; });
+        },
+        quote! {
+            break 1 + 'label: loop { break 'label 42; };
+        },
+        quote! {
+            break 'outer 'inner: loop { break 'inner 42; };
+        },
+    ] {
+        syn::parse2::<Stmt>(stmt).unwrap();
+    }
+
+    for stmt in [
+        // Parentheses required. See https://github.com/rust-lang/rust/pull/87026.
+        quote! {
+            break 'label: loop { break 'label 42; };
+        },
+    ] {
+        syn::parse2::<Stmt>(stmt).unwrap_err();
+    }
+}