Intent of historyRecordFixtures.test|title=mapSessionEventsToHistoryRecords ignores unknown event types|occurrence=1

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 2 tests
- platform/ 2 tests
  - agentHost/ 2 tests
    
    test/ 2 tests
    
    node/ 2 tests
    
    historyRecordFixtures.test|title=mapSessionEventsToHistoryRecords skill events synthesizes tool start/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/historyRecordFixtures.test|title=mapSessionEventsToHistoryRecords skill events synthesizes tool start/complete from skill.invoked and filters synthetic skill-injected user messages|occurrence=1 Inherited historyRecordFixtures.ts ×2
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/historyRecordFixtures.test|title=mapSessionEventsToHistoryRecords ignores unknown event types|occurrence=1 Introduced here