Intent of pfs.ts ×3

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 3 tests
- base/ 2 tests
  - test/ 2 tests
    
    node/ 2 tests
    
    pfs/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/node/pfs/pfs.test|title=PFS writeFile|occurrence=1 Inherited pfs.test|title=PFS writeFile|occurrence=1
    
    zip/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/node/zip/zip.test|title=Zip extract should handle directories|occurrence=1 Inherited zip.ts ×9
- platform/ 1 test
  - externalTerminal/ 1 test
    
    test/ 1 test
    
    node/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/externalTerminal/test/node/externalTerminalService.test|title=ExternalTerminalService LinuxTerminalService - uses default terminal when configuration.terminal.external.linuxExec is undefined|occurrence=1 Inherited externalTerminalService.ts ×7