Intent of log.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
  - tools/ 4 tests
    
    testrunner/ 4 tests
    
    TestParseFailedTestsFromOutput/ 4 tests
    
    go.temporal.io/server/tools/testrunner/TestParseFailedTestsFromOutput/DeduplicatesDuplicateLines Inherited DeduplicatesDuplicateLines
    
    go.temporal.io/server/tools/testrunner/TestParseFailedTestsFromOutput/ExtractsFailedTestNames Inherited log.go ×3
    
    go.temporal.io/server/tools/testrunner/TestParseFailedTestsFromOutput/ReturnsEmptyOnEmptyInput Introduced here
    
    go.temporal.io/server/tools/testrunner/TestParseFailedTestsFromOutput/ReturnsEmptyWhenNoFailures Introduced here