Intent of migration.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
  - chasm/ 3 tests
    
    lib/ 3 tests
    
    scheduler/ 3 tests
    
    migration/ 3 tests
    
    go.temporal.io/server/chasm/lib/scheduler/migration/TestConvertRunningWorkflowsToBufferedStarts_UniqueRequestIDs Introduced here
    
    go.temporal.io/server/chasm/lib/scheduler/migration/TestLegacyToCreateFromMigrationStateRequest Inherited migration.go ×5
    
    go.temporal.io/server/chasm/lib/scheduler/migration/TestLegacyToCreateFromMigrationStateRequest_DeduplicatesRunningWorkflows Inherited migration.go ×1