Fixed possible use after free

Author: dstogov

ext/opcache/zend_persist.c

@@ -484,6 +484,10 @@ static void zend_persist_op_array_ex(zend_op_array *op_array, zend_persistent_sc
 				op_array->vars = zend_shared_alloc_get_xlat_entry(op_array->vars);
 				ZEND_ASSERT(op_array->vars != NULL);
 			}
+			if (op_array->dynamic_func_defs) {
+				op_array->dynamic_func_defs = zend_shared_alloc_get_xlat_entry(op_array->dynamic_func_defs);
+				ZEND_ASSERT(op_array->dynamic_func_defs != NULL);
+			}
 			ZCG(mem) = (void*)((char*)ZCG(mem) + ZEND_ALIGNED_SIZE(zend_extensions_op_array_persist(op_array, ZCG(mem))));
 			return;
 		}