Fix crash when memory limit is exceeded during generator initialization

Author: arnaud-lb

Zend/tests/generators/gh9801.phpt

@@ -0,0 +1,14 @@
+--TEST--
+Bug GH-9801 (Crash when memory limit is exceeded during generator initialization)
+--INI--
+memory_limit=16m
+--FILE--
+<?php
+
+function a() {
+    yield from a();
+}
+
+foreach(a() as $v);
+--EXPECTF--
+Fatal error: Allowed memory size of %d bytes exhausted %s

Zend/zend_vm_def.h

@@ -4414,6 +4414,7 @@ ZEND_VM_HANDLER(139, ZEND_GENERATOR_CREATE, ANY, ANY)
 		zend_execute_data *gen_execute_data;
 		uint32_t num_args, used_stack, call_info;
 
+		SAVE_OPLINE();
 		object_init_ex(return_value, zend_ce_generator);
 
 		/*

Zend/zend_vm_execute.h

@@ -2022,6 +2022,7 @@ static ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_GENERATOR_CREATE_SPEC_HANDLER(
 		zend_execute_data *gen_execute_data;
 		uint32_t num_args, used_stack, call_info;
 
+		SAVE_OPLINE();
 		object_init_ex(return_value, zend_ce_generator);
 
 		/*