When debugging of a project located on the remote server(or symlinks are used) it is necessary to use path mappings (mapping of the remote project structure to the local project structure). Actually is not a problem and in most cases it is just one mapping of the roots.

But we need a way to validate in run-time path mappings configured by user. It is done in this way in Zend Debugger and I find it very handy.

So, feature request: When xdebug start to process some file first time (when it is included,required, etc) send a message to the user and wait for the confirmation response.

An example of such interaction:
1) <- Hey, listener! I am going to process new file with path '/path/to/sctipt.php'
2) Here IDE checks that path mapping is installed for the scipt and if no, tries to automatically find them or ask user for them.
3) -> Okay, you continue process file.