Intent of TestSetMerge_DifferentStates_UpdatesTimestampsAndState, TestSetMerge_NewerDefault_PrefersDefaultAndSetsMaxUpdatedAt, +2

All 9 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 9 tests
- server/ 9 tests
  - service/ 9 tests
    
    matching/ 9 tests
    
    go.temporal.io/server/service/matching/TestDataMerge_PrefersNewerDefaultAndMergesDefault Inherited TestDataMerge_PrefersNewerDefaultAndMergesDefault
    
    go.temporal.io/server/service/matching/TestMergeSets Inherited version_sets.go ×2
    
    go.temporal.io/server/service/matching/TestPersistUnknownBuildId_Merge Inherited TestPersistUnknownBuildId_Merge
    
    go.temporal.io/server/service/matching/TestSetMerge_AdditionalBuildIdAndGreaterUpdateTimestamp_MergesBuildIdsAndSetsMaxUpdateTimestamp Introduced here
    
    go.temporal.io/server/service/matching/TestSetMerge_DifferentSetIDs_MergesSetIDs Inherited version_sets_merge.go ×1
    
    go.temporal.io/server/service/matching/TestSetMerge_DifferentStates_UpdatesTimestampsAndState Introduced here
    
    go.temporal.io/server/service/matching/TestSetMerge_IdenticalBuildIdsAndGreaterUpdateTimestamp_SetsMaxUpdateTimestamp Introduced here
    
    go.temporal.io/server/service/matching/TestSetMerge_MultipleMatches_MergesSets Inherited version_sets_merge.go ×1
    
    go.temporal.io/server/service/matching/TestSetMerge_NewerDefault_PrefersDefaultAndSetsMaxUpdatedAt Introduced here