Intent of scavenger.go ×12

All 6 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 6 tests
- server/ 6 tests
  - service/ 6 tests
    
    worker/ 6 tests
    
    scanner/ 6 tests
    
    TestScannerWorkflowTestSuite/ 1 test
    
    go.temporal.io/server/service/worker/scanner/TestScannerWorkflowTestSuite/TestScavengerActivity Inherited workflow.go ×2
    
    taskqueue/ 5 tests
    
    TestScavengerTestSuite/ 5 tests
    
    go.temporal.io/server/service/worker/scanner/taskqueue/TestScavengerTestSuite/TestAliveTasksFollowedByExpired Inherited handler.go ×1
    
    go.temporal.io/server/service/worker/scanner/taskqueue/TestScavengerTestSuite/TestAllAliveTasks Inherited handler.go ×1
    
    go.temporal.io/server/service/worker/scanner/taskqueue/TestScavengerTestSuite/TestAllExpiredTasks Inherited handler.go ×5
    
    go.temporal.io/server/service/worker/scanner/taskqueue/TestScavengerTestSuite/TestAllExpiredTasksWithErrors Inherited db.go ×2
    
    go.temporal.io/server/service/worker/scanner/taskqueue/TestScavengerTestSuite/TestExpiredTasksFollowedByAlive Inherited TestExpiredTasksFollowedByAlive