use expect(incomplete_feature) instead of allow in tail call tests

Author: WaffleLapkin

tests/ui/explicit-tail-calls/become-macro.rs

@@ -1,5 +1,5 @@
 //@ check-pass
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls, decl_macro)]
 
 macro call($f:expr $(, $args:expr)* $(,)?) {

tests/ui/explicit-tail-calls/become-operator.fixed

@@ -1,5 +1,5 @@
 //@ run-rustfix
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 #![allow(unused)]
 use std::num::Wrapping;

tests/ui/explicit-tail-calls/become-operator.rs

@@ -1,5 +1,5 @@
 //@ run-rustfix
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 #![allow(unused)]
 use std::num::Wrapping;

tests/ui/explicit-tail-calls/become-outside.rs

@@ -1,5 +1,5 @@
 //@ revisions: constant array
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 
 #[cfg(constant)]

tests/ui/explicit-tail-calls/become-uncallable.fixed

@@ -1,5 +1,5 @@
 //@ run-rustfix
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 #![allow(unused)]
 

tests/ui/explicit-tail-calls/become-uncallable.rs

@@ -1,5 +1,5 @@
 //@ run-rustfix
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 #![allow(unused)]
 

tests/ui/explicit-tail-calls/closure.fixed

@@ -1,5 +1,5 @@
 //@ run-rustfix
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 
 fn a() {

tests/ui/explicit-tail-calls/closure.rs

@@ -1,5 +1,5 @@
 //@ run-rustfix
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 
 fn a() {

tests/ui/explicit-tail-calls/constck.rs

@@ -1,4 +1,4 @@
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 
 const fn f() {

tests/ui/explicit-tail-calls/ctfe-arg-bad-borrow.rs

@@ -1,4 +1,4 @@
-#![allow(incomplete_features)]
+#![expect(incomplete_features)]
 #![feature(explicit_tail_calls)]
 
 pub const fn test(_: &Type) {