Merge branch 'PHP-7.2'

* PHP-7.2:
  Fixed bug #76337

Author: weltling

Zend/tests/bug76337.phpt

@@ -0,0 +1,12 @@
+--TEST--
+Bug 76337: segmentation fault when an extension use zend_register_class_alias() and opcache enabled
+--SKIPIF--
+<?php if (!class_exists('_ZendTestClass') || !extension_loaded('Zend OPcache')) die('skip');
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+--FILE--
+<?php
+var_dump(class_exists('_ZendTestClassAlias'));
+--EXPECT--
+bool(true)

Zend/zend_API.c

@@ -2816,6 +2816,7 @@ ZEND_API int zend_register_class_alias_ex(const char *name, size_t name_len, zen
 
 	zend_assert_valid_class_name(lcname);
 
+	lcname = zend_new_interned_string(lcname);
 	ce = zend_hash_add_ptr(CG(class_table), lcname, ce);
 	zend_string_release(lcname);
 	if (ce) {

ext/zend_test/test.c

@@ -200,6 +200,8 @@ PHP_MINIT_FUNCTION(zend_test)
 	zend_test_trait = zend_register_internal_class(&class_entry);
 	zend_test_trait->ce_flags |= ZEND_ACC_TRAIT;
 	zend_declare_property_null(zend_test_trait, "testProp", sizeof("testProp")-1, ZEND_ACC_PUBLIC);
+
+	zend_register_class_alias("_ZendTestClassAlias", zend_test_class);
 	return SUCCESS;
 }