It's seems that is a bug of PHP Tools for Visual Studio.
I tried to reinstall xdebug (compilation with following strictly the instructions of xdebug support page).
xdebug seems works properly, I can see it in phpinfo and view TCP packets on port 9000 with Wireshark, but no break point on the IDE.
In output window I have:
Auto-attach to process '[21364] PHP.Debugger.Systray.exe' on machine 'MyPC' succeeded.
There wasn't established any directory mapping. La référence d'objet n'est pas définie à une instance d'un objet.
Auto-attach to process '[9884] php_remote.exe' on machine 'MyPC' succeeded.
Le programme '[9884] php_remote.exe' s'est arrêté avec le code -1 (0xffffffff).
May be must I downgrade version of XDebug (2.8.1) ?
How to submit ticket ?