Add #[\ReturnTypeWillChange] to Iterator in tests

Author: danon

test/Fixture/EntryIterator.php

@@ -13,12 +13,14 @@ public function __construct(array $entries)
         $this->entries = $entries;
     }
 
+    #[\ReturnTypeWillChange]
     public function current()
     {
         [$key, $value] = \current($this->entries);
         return $value;
     }
 
+    #[\ReturnTypeWillChange]
     public function key()
     {
         [$key, $value] = \current($this->entries);

test/Fixture/HistoryIterator.php

@@ -11,6 +11,7 @@ public function __construct(array $values)
         parent::__construct(new \ArrayIterator($values));
     }
 
+    #[\ReturnTypeWillChange]
     public function current()
     {
         $this->history[] = __FUNCTION__;
@@ -23,6 +24,7 @@ public function next(): void
         parent::next();
     }
 
+    #[\ReturnTypeWillChange]
     public function key()
     {
         $this->history[] = __FUNCTION__;

test/Fixture/ThrowIterable.php

@@ -3,7 +3,7 @@
 
 class ThrowIterable implements \IteratorAggregate
 {
-    public function getIterator()
+    public function getIterator(): \Traversable
     {
         throw new \AssertionError("Failed to assert that iterable was not used");
     }