Dogfood lints and input code fmt

Author: Ype Kingma

clippy_lints/src/lifetimes_bound_nested_ref.rs

@@ -217,11 +217,13 @@ impl Ord for BoundLftPair {
 fn at_least_2_explicit_lifetimes<'a>(generic_params: &'a [GenericParam<'a>]) -> bool {
     generic_params
         .iter()
-        .filter(|gp| match gp.kind {
-            GenericParamKind::Lifetime {
-                kind: LifetimeParamKind::Explicit,
-            } => true,
-            _ => false,
+        .filter(|gp| {
+            matches!(
+                gp.kind,
+                GenericParamKind::Lifetime {
+                    kind: LifetimeParamKind::Explicit,
+                }
+            )
         })
         .enumerate()
         .any(|(i, _)| i >= 1)
@@ -303,8 +305,8 @@ fn collect_nested_ref_implied_bounds(
     }
 }
 
-fn report_lints<'tcx2>(
-    cx: &LateContext<'tcx2>,
+fn report_lints(
+    cx: &LateContext<'_>,
     span: rustc_span::Span,
     declared_bounds: &BTreeSet<BoundLftPair>,
     implied_bounds: &BTreeSet<BoundLftPair>,

tests/ui/lifetimes_bound_nested_ref.rs

@@ -11,7 +11,6 @@ pub fn lifetime_translator_2<'lfta, 'lftb: 'lfta, T>(val_a: &'lfta &'lftb T, _va
     val_a
 }
 
-
 // helper declarations for issue 84591
 trait Supertrait<'a, 'b> {
     fn convert<T: ?Sized>(x: &'a T) -> &'b T;

tests/ui/lifetimes_bound_nested_ref.stderr

@@ -17,28 +17,27 @@ LL | pub fn lifetime_translator_2<'lfta, 'lftb: 'lfta, T>(val_a: &'lfta &'lftb T
    = help: to override `-D warnings` add `#[allow(clippy::explicit_lifetimes_bound_nested_ref)]`
 
 error: missing lifetime bound declation: 'a: 'b
-  --> tests/ui/lifetimes_bound_nested_ref.rs:31:5
+  --> tests/ui/lifetimes_bound_nested_ref.rs:30:5
    |
 LL | impl<'a, 'b> Subtrait<'a, 'b, &'b &'a ()> for MyStruct {}
    |     ^^^^^^^^
 
 error: declared lifetime bound is implied: 'a: 'b
-  --> tests/ui/lifetimes_bound_nested_ref.rs:36:5
+  --> tests/ui/lifetimes_bound_nested_ref.rs:35:5
    |
 LL | impl<'a: 'b, 'b> Subtrait2<'a, 'b, &'b &'a ()> for MyStruct {}
    |     ^^^^^^^^^^^^
 
 error: missing lifetime bound declation: 'a: 'b
-  --> tests/ui/lifetimes_bound_nested_ref.rs:52:5
+  --> tests/ui/lifetimes_bound_nested_ref.rs:51:5
    |
 LL | impl<'a, 'b> Extend1<'a, 'b> for <&'b &'a () as Trait1>::Type1 {
    |     ^^^^^^^^
 
 error: declared lifetime bound is implied: 'a: 'b
-  --> tests/ui/lifetimes_bound_nested_ref.rs:71:5
+  --> tests/ui/lifetimes_bound_nested_ref.rs:70:5
    |
 LL | impl<'a: 'b, 'b> Extend2<'a, 'b> for <&'b &'a () as Trait2>::Type2 {
    |     ^^^^^^^^^^^^
 
 error: aborting due to 6 previous errors
-