Add a failure filter

[creativeArtie]

Is your feature request related to a problem? Please describe.
It is hard for me search the failed test in large amount of passed tests. I don't want to see passed tests if I am searching for failed tests.

Describe the solution you'd like
A way to filter out the passed tests and show only the failed tests.

Describe alternatives you've considered
Pressing the fail count will closes all the passed tests.
In list box allowing sorting of passed and failed tests

[tiranbe]

This would indeed be a very useful addition. The color coding of the errors helps a lot in identifying which tests have failed; however when you have thousands of passes and a few failed tests, it becomes hard and time-consuming to find the errors in the whole list.

[Ganbin]

Work is in progress :) I will build a new version when it is done (soon) and will let you know.