Intent of merge.go ×2

All 4 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 4 tests
- server/ 4 tests
  - chasm/ 1 test
    
    lib/ 1 test
    
    activity/ 1 test
    
    go.temporal.io/server/chasm/lib/activity/TestNewStandaloneActivity_OriginalOptionsUnaffectedBySubfieldUpdate Inherited TestNewStandaloneActivity_OriginalOptionsUnaffectedBySubfieldUpdate
  - common/ 2 tests
    
    activityoptions/ 2 tests
    
    TestMergeActivityOptionsAcceptance/ 1 test
    
    go.temporal.io/server/common/activityoptions/TestMergeActivityOptionsAcceptance/Sub-fields Inherited Sub-fields
    
    TestMergeActivityOptionsCoversAllFields/ 1 test
    
    updates/ 1 test
    
    go.temporal.io/server/common/activityoptions/TestMergeActivityOptionsCoversAllFields/updates/priority.fairnessKey Inherited merge.go ×1
  - service/ 1 test
    
    history/ 1 test
    
    api/ 1 test
    
    updateactivityoptions/ 1 test
    
    go.temporal.io/server/service/history/api/updateactivityoptions/TestApplyActivityOptionsReset Inherited TestApplyActivityOptionsReset