zjsunit: Add support for using i18n without escaping.
zjsunit: Add support for using i18n without escaping.

This adds support for the `- __foo__` syntax supported by i18n.t.

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