Fixed memory leak

Zend/zend_execute_API.c

@@ -1006,7 +1006,7 @@ ZEND_API int zend_u_lookup_class(zend_uchar type, void *name, int name_length, z
 		return FAILURE;
 	}
 
-	ZVAL_STRINGL(&autoload_function, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME)-1,  0);
+	ZVAL_STRINGL(&autoload_function, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME)-1, 0);
 
 	ALLOC_ZVAL(class_name_ptr);
 	INIT_PZVAL(class_name_ptr);
@@ -1038,6 +1038,10 @@ ZEND_API int zend_u_lookup_class(zend_uchar type, void *name, int name_length, z
 	retval = zend_call_function(&fcall_info, &fcall_cache TSRMLS_CC);
 	EG(autoload_func) = fcall_cache.function_handler;
 
+	if (UG(unicode)) {
+		zval_dtor(&autoload_function);
+	}
+
 	zval_ptr_dtor(&class_name_ptr);
 
 	zend_u_hash_del(EG(in_autoload), type, lc_name, lc_name_len+1);