[GIT-PULLS] [php-src] PR #23448: Fix GH-23447: segfault when the SoapServer class fails to initialize

Pull Request: https://github.com/php/php-src/pull/23448
Author: lazerg

`SoapServer::handle()` ignored the return value of `object_init_ex()`, so when the class given to `setClass()` could not be instantiated the code carried on with a NULL zval and crashed on `Z_OBJCE_P(soap_obj)`. That happens for instance when a property default references an undefined constant, since evaluating it throws an `Error` and object creation fails.

Now the failure is reported as a SOAP fault, the same way a throwing constructor already is.

Fixes #23447