test_runner: Ignore self.stream in TextTestResult class.
test_runner: Ignore self.stream in TextTestResult class.

Per the import line:

`from unittest import loader, runner  # type: ignore  # Mypy cannot pick
these up.`

Because `TextTestResult` inherits from `runner.TextTestResult`, mypy
doesn't see `self` as having an attribute `stream`, so we ignore these
instead of cluttering with `casts` or `isinstances`.

kou/zulip,showell/zulip,zulip/zulip,tommyip/zulip,tommyip/zulip,hackerkid/zulip,timabbott/zulip,hackerkid/zulip,hackerkid/zulip,showell/zulip,shubhamdhama/zulip,showell/zulip,synicalsyntax/zulip,shubhamdhama/zulip,synicalsyntax/zulip,brainwane/zulip,rht/zulip,rht/zulip,synicalsyntax/zulip,rht/zulip,punchagan/zulip,showell/zulip,andersk/zulip,brainwane/zulip,kou/zulip,timabbott/zulip,zulip/zulip,synicalsyntax/zulip,kou/zulip,eeshangarg/zulip,andersk/zulip,synicalsyntax/zulip,rht/zulip,eeshangarg/zulip,shubhamdhama/zulip,eeshangarg/zulip,timabbott/zulip,zulip/zulip,brainwane/zulip,hackerkid/zulip,showell/zulip,andersk/zulip,hackerkid/zulip,showell/zulip,eeshangarg/zulip,punchagan/zulip,tommyip/zulip,eeshangarg/zulip,punchagan/zulip,shubhamdhama/zulip,zulip/zulip,timabbott/zulip,brainwane/zulip,synicalsyntax/zulip,tommyip/zulip,timabbott/zulip,shubhamdhama/zulip,andersk/zulip,eeshangarg/zulip,kou/zulip,shubhamdhama/zulip,andersk/zulip,kou/zulip,timabbott/zulip,hackerkid/zulip,punchagan/zulip,zulip/zulip,rht/zulip,tommyip/zulip,kou/zulip,synicalsyntax/zulip,brainwane/zulip,tommyip/zulip,rht/zulip,hackerkid/zulip,brainwane/zulip,punchagan/zulip,brainwane/zulip,punchagan/zulip,showell/zulip,shubhamdhama/zulip,zulip/zulip,zulip/zulip,timabbott/zulip,punchagan/zulip,eeshangarg/zulip,kou/zulip,tommyip/zulip,rht/zulip,andersk/zulip,andersk/zulip