Investigate flaky test parallel/test-filehandle-readablestream

[gireeshpunathil]

• Test: parallel/test-filehandle-readablestream
• Platform: Linux (ubuntu1804_sharedlibs)
• Console Output:

12:40:10 not ok 791 parallel/test-filehandle-readablestream
12:40:10   ---
12:40:10   duration_ms: 0.111
12:40:10   severity: fail
12:40:10   exitcode: 1
12:40:10   stack: |-
12:40:10     node:internal/process/promises:246
12:40:10               triggerUncaughtException(err, true /* fromPromise */);
12:40:10               ^
12:40:10     
12:40:10     [Error: EBADF: bad file descriptor, close] {
12:40:10       errno: -9,
12:40:10       code: 'EBADF',
12:40:10       syscall: 'close'
12:40:10     }
12:40:10   ...

• Build Links:
  https://ci.nodejs.org/job/node-test-commit-linux-containered/nodes=ubuntu1804_sharedlibs_openssl111_x64/27907/consoleFull

[danbev]

It look like this is the same issue as in #39464. I'll close this issue but please re-open if you think this is a mistake.