Intent of Fatal_stops_real_TB, Errorf_marks_real_TB_failed

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 2 tests
- server/ 2 tests
  - common/ 2 tests
    
    testing/ 2 tests
    
    await/ 2 tests
    
    TestRequire_FailureScenarios/ 2 tests
    
    reports_real_TB_misuse/ 2 tests
    
    go.temporal.io/server/common/testing/await/TestRequire_FailureScenarios/reports_real_TB_misuse/Errorf_marks_real_TB_failed Introduced here
    
    go.temporal.io/server/common/testing/await/TestRequire_FailureScenarios/reports_real_TB_misuse/Fatal_stops_real_TB Introduced here