Auto merge of #146282 - tgross35:rollup-0n5tjnm, r=tgross35

Rollup of 5 pull requests

Successful merges:

 - rust-lang/rust#139524 (Add socket extensions for cygwin)
 - rust-lang/rust#145940 (single buffer for exponent fmt of integers)
 - rust-lang/rust#146206 (identity uses are ok, even if there are no defining uses)
 - rust-lang/rust#146272 (Update comment for `-Werror` on LLVM builds)
 - rust-lang/rust#146280 (Make `LetChainsPolicy` public for rustfmt usage)

r? `@ghost`
`@rustbot` modify labels: rollup

2 files changed, 3 insertions, 1 deletions

diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index 9b09cbba7af..4c02547357e 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -2742,7 +2742,7 @@ impl<'a> Parser<'a> {
     /// The specified `edition` in `let_chains_policy` should be that of the whole `if` construct,
     /// i.e. the same span we use to later decide whether the drop behaviour should be that of
     /// edition `..=2021` or that of `2024..`.
-    // Public because it is used in rustfmt forks such as https://github.com/tucant/rustfmt/blob/30c83df9e1db10007bdd16dafce8a86b404329b2/src/parse/macros/html.rs#L57 for custom if expressions.
+    // Public to use it for custom `if` expressions in rustfmt forks like https://github.com/tucant/rustfmt
     pub fn parse_expr_cond(
         &mut self,
         let_chains_policy: LetChainsPolicy,
diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs
index 15598f32429..3bbca622975 100644
--- a/compiler/rustc_parse/src/parser/mod.rs
+++ b/compiler/rustc_parse/src/parser/mod.rs
@@ -22,6 +22,8 @@ use std::{fmt, mem, slice};
 use attr_wrapper::{AttrWrapper, UsePreAttrPos};
 pub use diagnostics::AttemptLocalParseRecovery;
 pub(crate) use expr::ForbiddenLetReason;
+// Public to use it for custom `if` expressions in rustfmt forks like https://github.com/tucant/rustfmt
+pub use expr::LetChainsPolicy;
 pub(crate) use item::{FnContext, FnParseMode};
 pub use pat::{CommaRecoveryMode, RecoverColon, RecoverComma};
 pub use path::PathStyle;