Intent of validator.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/ 3 tests
    
    lib/ 3 tests
    
    callback/ 3 tests
    
    TestValidateCallbacks/ 3 tests
    
    go.temporal.io/server/chasm/lib/callback/TestValidateCallbacks/HeaderKeysNormalizedToLowercase Inherited ValidNexusCallback, HeaderKeysNormalizedToLowercase
    
    go.temporal.io/server/chasm/lib/callback/TestValidateCallbacks/HeaderTooLarge Inherited validator.go ×1
    
    go.temporal.io/server/chasm/lib/callback/TestValidateCallbacks/ValidNexusCallback Inherited ValidNexusCallback, HeaderKeysNormalizedToLowercase
  - service/ 1 test
    
    frontend/ 1 test
    
    TestWorkflowHandlerSuite/ 1 test
    
    go.temporal.io/server/service/frontend/TestWorkflowHandlerSuite/TestStartWorkflowExecution_Failed_InvalidAggregatedLinks Inherited TestStartWorkflowExecution_Failed_InvalidAggregatedLinks