Encapsulates the result of analyis-phase testing. Build targets which return an instance of this provider signal to the build system that it should generate a 'stub' test executable which generates the equivalent test result. Analysis test rules (rules created with
return an instance of this provider, and non-analysis-phase test rules cannot
return this provider.
A descriptive message containing information about the test and its success/failure.
If true, then the analysis-phase test represented by this target passed. If false, the test failed.