Identical titles of skipped scenarios

[AntaninaKaltsova]

Hi! I'm using mocha-parallel-tests version 2.2.2, tried with mocha 6.1.4 and 6.2.0.
I have several test files, each file contain one describe block and several its in it, also at least one skipped it (using xit statement). In console all skipped scenarios have identical titles, but in real they are not identical. Could you please check it?

`
GET /v0/applications/applicationUID/decision Retrieve application decision information
- GET /v0/applications/applicationUID/decision with correct applicationUID
- GET /v0/applications/applicationUID/decision with correct applicationUID
√ GET /v0/applications/applicationUID/decision with invalid token (1002ms)
√ GET /v0/applications/applicationUID/decision without token (691ms)

GET /v0/applications/applicationUID/decision/edit/fields Retrieve editable fields for Decision editing with their validation rules
- GET /v0/applications/applicationUID/decision with correct applicationUID
- GET /v0/applications/applicationUID/decision with correct applicationUID
√ GET /v0/applications/applicationUID/decision/edit/fields without applicationUID (1021ms)
√ GET /v0/applications/applicationUID/decision/edit/fields with invalid token (693ms)
√ GET /v0/applications/applicationUID/decision/edit/fields without token (765ms)

5 passing (11s)
4 pending`

[1999]

@AntaninaKaltsova thanks for reporting this. Right now I don't have enough time to fix mocha-parallel-tests issues but I will be more than happy to help you to fix it.