Intent of task_refresher.go ×2

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 3 tests
- server/ 3 tests
  - service/ 3 tests
    
    history/ 3 tests
    
    workflow/ 3 tests
    
    TestContextSuite/ 2 tests
    
    TestRefreshTask/ 2 tests
    
    go.temporal.io/server/service/history/workflow/TestContextSuite/TestRefreshTask/open_workflow Inherited open_workflow
    
    go.temporal.io/server/service/history/workflow/TestContextSuite/TestRefreshTask/zombie_workflow Inherited task_generator.go ×1
    
    TestTaskRefresherSuite/ 1 test
    
    go.temporal.io/server/service/history/workflow/TestTaskRefresherSuite/TestRefreshSignalExternalTasks Inherited task_refresher.go ×3