Intent of markerService.ts ×2

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

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 1 test
- platform/ 1 test
  - markers/ 1 test
    
    test/ 1 test
    
    common/ 1 test
    
    markerService.test|title=Marker Service changeOne/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/markers/test/common/markerService.test|title=Marker Service changeOne/All clears|occurrence=1 Inherited markerService.ts ×1
mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/markers/test/common/markerService.test|title=Marker Service MapMap#remove returns bad values, https://github.com/microsoft/vscode/issues/13548|occurrence=1 Inherited 13548|occurrence=1