Remove usage of empty function when possible

Author: alamirault

ChoiceList/Factory/DefaultChoiceListFactory.php

@@ -71,7 +71,7 @@ public function createView(ChoiceListInterface $list, array|callable $preferredC
         $keys = $list->getOriginalKeys();
 
         if (!\is_callable($preferredChoices)) {
-            if (empty($preferredChoices)) {
+            if (!$preferredChoices) {
                 $preferredChoices = null;
             } else {
                 // make sure we have keys that reflect order

Extension/Core/DataTransformer/ArrayToPartsTransformer.php

@@ -39,7 +39,7 @@ public function transform(mixed $array): mixed
         $result = [];
 
         foreach ($this->partMapping as $partKey => $originalKeys) {
-            if (empty($array)) {
+            if (!$array) {
                 $result[$partKey] = null;
             } else {
                 $result[$partKey] = array_intersect_key($array, array_flip($originalKeys));

FormRegistry.php

@@ -152,7 +152,7 @@ public function getTypeGuesser(): ?FormTypeGuesserInterface
                 }
             }
 
-            $this->guesser = !empty($guessers) ? new FormTypeGuesserChain($guessers) : null;
+            $this->guesser = $guessers ? new FormTypeGuesserChain($guessers) : null;
         }
 
         return $this->guesser;