Fix enum reflection

Author: iluuu1994

ext/reflection/php_reflection.c

@@ -1485,7 +1485,7 @@ static void reflection_enum_case_factory(zend_class_entry *ce, zend_string *name
 {
 	reflection_object *intern;
 
-	zend_class_entry *case_reflection_class = ce->backed_enum_table == IS_UNDEF
+	zend_class_entry *case_reflection_class = ce->enum_backing_type == IS_UNDEF
 		? reflection_enum_unit_case_ptr
 		: reflection_enum_backed_case_ptr;
 	reflection_instantiate(case_reflection_class, object);

ext/reflection/tests/ReflectionEnum_getCase.phpt

@@ -32,15 +32,15 @@ test(IntEnum::class, 'Baz');
 
 ?>
 --EXPECT--
-object(ReflectionEnumUnitCase)#3 (2) {
+object(ReflectionEnumUnitCase)#2 (2) {
   ["name"]=>
   string(3) "Foo"
   ["class"]=>
   string(5) "Enum_"
 }
 ReflectionException: Enum_::Bar is not a case
 ReflectionException: Case Enum_::Baz does not exist
-object(ReflectionEnumBackedCase)#3 (2) {
+object(ReflectionEnumBackedCase)#2 (2) {
   ["name"]=>
   string(3) "Foo"
   ["class"]=>

ext/reflection/tests/ReflectionEnum_getCases.phpt

@@ -22,14 +22,14 @@ var_dump((new ReflectionEnum(IntEnum::class))->getCases());
 --EXPECT--
 array(2) {
   [0]=>
-  object(ReflectionEnumUnitCase)#4 (2) {
+  object(ReflectionEnumUnitCase)#2 (2) {
     ["name"]=>
     string(3) "Foo"
     ["class"]=>
     string(5) "Enum_"
   }
   [1]=>
-  object(ReflectionEnumUnitCase)#5 (2) {
+  object(ReflectionEnumUnitCase)#3 (2) {
     ["name"]=>
     string(3) "Bar"
     ["class"]=>
@@ -38,14 +38,14 @@ array(2) {
 }
 array(2) {
   [0]=>
-  object(ReflectionEnumBackedCase)#4 (2) {
+  object(ReflectionEnumBackedCase)#2 (2) {
     ["name"]=>
     string(3) "Foo"
     ["class"]=>
     string(7) "IntEnum"
   }
   [1]=>
-  object(ReflectionEnumBackedCase)#3 (2) {
+  object(ReflectionEnumBackedCase)#1 (2) {
     ["name"]=>
     string(3) "Bar"
     ["class"]=>