Intent of userActivityService.ts ×4

All 4 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 4 tests
- workbench/ 4 tests
  - services/ 4 tests
    
    userActivity/ 4 tests
    
    test/ 4 tests
    
    common/ 4 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/services/userActivity/test/common/userActivityService.test|title=UserActivityService markActive sets active whenHeldFor|occurrence=1 Inherited userActivityService.test|title=UserActivityService markActive sets active whenHeldFor|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/services/userActivity/test/common/userActivityService.test|title=UserActivityService markActive should be inactive when all handles gone|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/services/userActivity/test/common/userActivityService.test|title=UserActivityService markActive whenHeldFor before triggers|occurrence=1 Inherited userActivityService.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/services/userActivity/test/common/userActivityService.test|title=UserActivityService markActive with extendOnly only extends if already active|occurrence=1 Inherited userActivityService.ts ×1