Fix no collection in extract default value

Author: Korbeil

src/Symfony/Component/PropertyInfo/Extractor/ReflectionExtractor.php

@@ -477,8 +477,9 @@ private function extractFromDefaultValue(string $class, string $property): ?arra
         }
 
         $type = \gettype($defaultValue);
+        $type = static::MAP_TYPES[$type] ?? $type;
 
-        return [new Type(static::MAP_TYPES[$type] ?? $type)];
+        return [new Type($type, false, null, Type::BUILTIN_TYPE_ARRAY === $type)];
     }
 
     private function extractFromReflectionType(\ReflectionType $reflectionType, \ReflectionClass $declaringClass): array

src/Symfony/Component/PropertyInfo/Tests/Extractor/ReflectionExtractorTest.php

@@ -257,7 +257,7 @@ public function defaultValueProvider()
             ['defaultInt', [new Type(Type::BUILTIN_TYPE_INT, false)]],
             ['defaultFloat', [new Type(Type::BUILTIN_TYPE_FLOAT, false)]],
             ['defaultString', [new Type(Type::BUILTIN_TYPE_STRING, false)]],
-            ['defaultArray', [new Type(Type::BUILTIN_TYPE_ARRAY, false)]],
+            ['defaultArray', [new Type(Type::BUILTIN_TYPE_ARRAY, false, null, true)]],
             ['defaultNull', null],
         ];
     }
@@ -415,6 +415,7 @@ public function testTypedProperties(): void
         $this->assertEquals([new Type(Type::BUILTIN_TYPE_OBJECT, false, Dummy::class)], $this->extractor->getTypes(Php74Dummy::class, 'dummy'));
         $this->assertEquals([new Type(Type::BUILTIN_TYPE_BOOL, true)], $this->extractor->getTypes(Php74Dummy::class, 'nullableBoolProp'));
         $this->assertEquals([new Type(Type::BUILTIN_TYPE_ARRAY, false, null, true, new Type(Type::BUILTIN_TYPE_INT), new Type(Type::BUILTIN_TYPE_STRING))], $this->extractor->getTypes(Php74Dummy::class, 'stringCollection'));
+        $this->assertEquals([new Type(Type::BUILTIN_TYPE_ARRAY, false, null, true)], $this->extractor->getTypes(Php74Dummy::class, 'collection'));
     }
 
     /**

src/Symfony/Component/PropertyInfo/Tests/Fixtures/Php74Dummy.php

@@ -20,6 +20,7 @@ class Php74Dummy
     private ?bool $nullableBoolProp;
     /** @var string[] */
     private array $stringCollection;
+    public array $collection = [];
 
     public function addStringCollection(string $string): void
     {