Auto merge of rust-lang#94088 - oli-obk:revert, r=jackh726

Revert rust-lang#91403

fixes rust-lang#94004

r? `@pnkfelix` `@cjgillot`

tests/ui/manual_async_fn.fixed

@@ -80,7 +80,6 @@ fn elided_not_bound(_: &i32) -> impl Future<Output = i32> {
     async { 42 }
 }
 
-#[allow(clippy::needless_lifetimes)]
 async fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> i32 { 42 }
 
 // should be ignored

tests/ui/manual_async_fn.rs

@@ -98,7 +98,6 @@ fn elided_not_bound(_: &i32) -> impl Future<Output = i32> {
     async { 42 }
 }
 
-#[allow(clippy::needless_lifetimes)]
 fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future<Output = i32> + 'a + 'b {
     async { 42 }
 }

tests/ui/manual_async_fn.stderr

@@ -140,7 +140,7 @@ LL | fn elided(_: &i32) -> impl Future<Output = i32> + '_ { 42 }
    |                                                      ~~~~~~
 
 error: this function can be simplified using the `async fn` syntax
-  --> $DIR/manual_async_fn.rs:102:1
+  --> $DIR/manual_async_fn.rs:101:1
    |
 LL | fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future<Output = i32> + 'a + 'b {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

tests/ui/needless_lifetimes.stderr

@@ -18,12 +18,6 @@ error: explicit lifetimes given in parameter types where they could be elided (o
 LL | fn in_and_out<'a>(x: &'a u8, _y: u8) -> &'a u8 {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
-  --> $DIR/needless_lifetimes.rs:37:1
-   |
-LL | async fn func<'a>(args: &[&'a str]) -> Option<&'a str> {
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
 error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
   --> $DIR/needless_lifetimes.rs:56:1
    |
@@ -198,5 +192,5 @@ error: explicit lifetimes given in parameter types where they could be elided (o
 LL |         fn lifetime_elsewhere_provided<'a>(self: Box<Self>, here: &'a ()) -> &'a () {
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: aborting due to 33 previous errors
+error: aborting due to 32 previous errors