Auto merge of #110405 - fee1-dead-contrib:rollup-9rkree6, r=fee1-dead

Rollup of 4 pull requests

Successful merges:

 - #110397 (Move some utils out of `rustc_const_eval`)
 - #110398 (use matches! macro in more places)
 - #110400 (more clippy fixes: clippy::{iter_cloned_collect, unwarp_or_else_defau…)
 - #110402 (Remove the loop in `Align::from_bytes`)

Failed merges:

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

2 files changed, 10 insertions, 14 deletions

diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs
index 6422b8ac1ba..f5fef6ad019 100644
--- a/compiler/rustc_parse/src/parser/item.rs
+++ b/compiler/rustc_parse/src/parser/item.rs
@@ -2577,14 +2577,12 @@ impl<'a> Parser<'a> {
     }
 
     fn recover_self_param(&mut self) -> bool {
-        match self
-            .parse_outer_attributes()
-            .and_then(|_| self.parse_self_param())
-            .map_err(|e| e.cancel())
-        {
-            Ok(Some(_)) => true,
-            _ => false,
-        }
+        matches!(
+            self.parse_outer_attributes()
+                .and_then(|_| self.parse_self_param())
+                .map_err(|e| e.cancel()),
+            Ok(Some(_))
+        )
     }
 }
 
diff --git a/compiler/rustc_parse/src/parser/nonterminal.rs b/compiler/rustc_parse/src/parser/nonterminal.rs
index 7a4d53ed8bb..adb0d372a40 100644
--- a/compiler/rustc_parse/src/parser/nonterminal.rs
+++ b/compiler/rustc_parse/src/parser/nonterminal.rs
@@ -20,12 +20,10 @@ impl<'a> Parser<'a> {
     pub fn nonterminal_may_begin_with(kind: NonterminalKind, token: &Token) -> bool {
         /// Checks whether the non-terminal may contain a single (non-keyword) identifier.
         fn may_be_ident(nt: &token::Nonterminal) -> bool {
-            match *nt {
-                token::NtItem(_) | token::NtBlock(_) | token::NtVis(_) | token::NtLifetime(_) => {
-                    false
-                }
-                _ => true,
-            }
+            !matches!(
+                *nt,
+                token::NtItem(_) | token::NtBlock(_) | token::NtVis(_) | token::NtLifetime(_)
+            )
         }
 
         match kind {