Can we track progress in normal ] test mode?

[juliohm]

It is very nice to run tests of a package with ] test using TestItemRunner.jl. I wonder if this package could display a progress of the test items being run. Some packages have very large test suites, and it helps to know how much time is left.

[davidanthoff]

TestItemRunner2 has a nice progress UI (two, in fact), but the problem with TestItemRunner is that we just print all the test output as it happens to stdout/stderr. So any progress printing would constantly intermingle with the output from the tests themselves...