Keep the enum(Foo::Bar) headers, remove object handle

Author: DanielEScherzer

Zend/tests/enum/debugInfo/backed_enum_value.phpt

@@ -14,8 +14,8 @@ enum Foo: string {
 var_dump(Foo::Bar);
 
 ?>
---EXPECTF--
-object(Foo)#%d (1) {
+--EXPECT--
+enum(Foo::Bar) (1) {
   [0]=>
   string(14) "Foo::Bar = Baz"
 }

Zend/tests/enum/debugInfo/magic_method.phpt

@@ -14,8 +14,8 @@ enum Foo {
 var_dump(Foo::Bar);
 
 ?>
---EXPECTF--
-object(Foo)#%d (1) {
+--EXPECT--
+enum(Foo::Bar) (1) {
   [0]=>
   string(29) "Bar is a case of the Foo enum"
 }

Zend/tests/enum/debugInfo/visibility_validation.phpt

@@ -16,5 +16,5 @@ var_dump(Foo::Bar);
 ?>
 --EXPECTF--
 Warning: The magic method Foo::__debugInfo() must have public visibility in %s on line %d
-object(Foo)#%d (0) {
+enum(Foo::Bar) (0) {
 }

ext/standard/var.c

@@ -182,11 +182,16 @@ PHPAPI void php_var_dump(zval *struc, int level) /* {{{ */
 			ZEND_GUARD_OR_GC_PROTECT_RECURSION(guard, DEBUG, zobj);
 
 			myht = zend_get_properties_for(struc, ZEND_PROP_PURPOSE_DEBUG);
-			class_name = Z_OBJ_HANDLER_P(struc, get_class_name)(Z_OBJ_P(struc));
-			const char *prefix = php_var_dump_object_prefix(Z_OBJ_P(struc));
+			if (ce->ce_flags & ZEND_ACC_ENUM) {
+				zval *case_name_zval = zend_enum_fetch_case_name(Z_OBJ_P(struc));
+				php_printf("%senum(%s::%s) (%d) {\n", COMMON, ZSTR_VAL(ce->name), Z_STRVAL_P(case_name_zval), myht ? zend_array_count(myht) : 0);
+			} else {
+				class_name = Z_OBJ_HANDLER_P(struc, get_class_name)(Z_OBJ_P(struc));
+				const char *prefix = php_var_dump_object_prefix(Z_OBJ_P(struc));
 
-			php_printf("%s%sobject(%s)#%d (%d) {\n", COMMON, prefix, ZSTR_VAL(class_name), Z_OBJ_HANDLE_P(struc), myht ? zend_array_count(myht) : 0);
-			zend_string_release_ex(class_name, 0);
+				php_printf("%s%sobject(%s)#%d (%d) {\n", COMMON, prefix, ZSTR_VAL(class_name), Z_OBJ_HANDLE_P(struc), myht ? zend_array_count(myht) : 0);
+				zend_string_release_ex(class_name, 0);
+			}
 
 			if (myht) {
 				zend_ulong num;