Add & to var_dump for enum references

Author: iluuu1994

Zend/tests/enum/var_dump-reference.phpt

@@ -0,0 +1,22 @@
+--TEST--
+Enum var_dump reference
+--FILE--
+<?php
+
+enum Foo {
+    case Bar;
+    case Baz;
+}
+
+$arr = [Foo::Bar];
+$arr[1] = &$arr[0];
+var_dump($arr);
+
+?>
+--EXPECT--
+array(2) {
+  [0]=>
+  &enum(Foo::Bar)
+  [1]=>
+  &enum(Foo::Bar)
+}

ext/standard/var.c

@@ -151,7 +151,7 @@ PHPAPI void php_var_dump(zval *struc, int level) /* {{{ */
 			zend_class_entry *ce = Z_OBJCE_P(struc);
 			if (ce->ce_flags & ZEND_ACC_ENUM) {
 				zval *case_name_zval = zend_enum_fetch_case_name(Z_OBJ_P(struc));
-				php_printf("enum(%s::%s)\n", ZSTR_VAL(class_name), Z_STRVAL_P(case_name_zval));
+				php_printf("%senum(%s::%s)\n", COMMON, ZSTR_VAL(class_name), Z_STRVAL_P(case_name_zval));
 				return;
 			}