[Development] Supporting helper functions in auto tests by providing throwing Qt Test macros

[Robin Burchell]

On Wed, Apr 3, 2019, at 1:24 PM, Giuseppe D'Angelo via Development wrote:
> I may like the overall approach. However, this would imply that such 
> tests require exceptions / RTTI turned on inside QtTestLib / user code; 
> is it "OK" in the grand scheme of things?

Note that testcase.prf already enables exceptions, at least for Qt's own tests (apparently, according to Mitch, with the exception of testlib's self tests).