Regenerate arginfo file

Somehow missed this in the previous commit.

Author: nikic

ext/soap/soap_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: b22d29a51c17d627763229aac15718702002daec */
+ * Stub hash: c0d32b2d8f3c39203b437a01dc79cd4e934dc9f7 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_use_soap_error_handler, 0, 0, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, enable, _IS_BOOL, 0, "true")
@@ -131,7 +131,7 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SoapClient___setSoapHeaders, 0, 0, 0)
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SoapClient___setLocation, 0, 0, 0)
-	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, location, IS_STRING, 0, "\"\"")
+	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, location, IS_STRING, 1, "null")
 ZEND_END_ARG_INFO()