Object.dirname is deprecated.

[GBardis]

Argument to path.dirname must be a string

Object.dirname (/usr/share/atom/resources/app.asar/src/electron-shims.js:9:10)
<unknown> (/home/gdev/.atom/packages/linter-tslint/lib/main.js:232:50)
Object.<anonymous> (/home/gdev/.atom/packages/linter-tslint/lib/main.js:246:9)
undefined.next (null:null:null)
step (/home/gdev/.atom/packages/linter-tslint/lib/main.js:7:273)

[Arcanemagus]

@Xapphire13 Although Linter is supposed to not trigger on never saved buffers, somehow we still get situations where textEditor.getPath() still returns undefined. This can probably be fixed by putting a check for that here.

[Xapphire13]

Working on it =]. I'll add specs for this case too