Intent of pfs.test|title=PFS rename without retry|occurrence=1, pfs.test|title=PFS copy, rename and delete|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
- base/ 2 tests
  - test/ 2 tests
    
    node/ 2 tests
    
    pfs/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/node/pfs/pfs.test|title=PFS copy, rename and delete|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/node/pfs/pfs.test|title=PFS rename without retry|occurrence=1 Introduced here