[Boost-testing] How to prevent expected-to-fail tests from getting into bjam logfiles?

Subject: [Boost-testing] How to prevent expected-to-fail tests from getting into bjam logfiles?
From: Sergey Sprogis (sergey.sprogis_at_[hidden])
Date: 2014-12-29 22:30:57

I'd like to use boost regression unit tests to test new C++ compiler 
which is currently under development.
For that type of testing launching expected-to-fail tests are just 
annoying noise which I want to remove,
in oder to be focused only on false failures which will indicate 
compiler bugs.
My understanding is that currently there is no such bjam option which 
will allow me to do that.
But could anyone give me a hint which files do I need to  modify in my 
private area to solve this problem,
so that none of expected-to-fail tests will show up in my logfiles 
produced by bjam?