integrated console starts immediately if untitled editor is reloaded

Issue Type: Bug

Start VSCode with PowerShell extension enabled, with an untitled and dirty PowerShell editor reloaded from hot-exit, but not restarted with the focus (so other editors that are not PowerShell must be also reloaded from hot-exit), and the PowerShell integrated console starts immediately (as soon as extensions start), with its 'starting' status and later the icon appearing in the status bar, even though its unwarranted. This only seems to happen while there is an untitled PowerShell language mode editor that is also dirty, restarted via hot-exit, without it being in focus. (Integrated console starting is expected if any editor in PowerShell language mode restarts with the focus)

Examples above are with an also untitled dirty SQL language file reloaded with the focus. I can however confirm that it also occurs if a saved and not dirty file is reloaded with the focus, such as Batch:

Extension version: 1.8.0
VS Code version: Code 1.25.0 (0f080e5267e829de46638128001aeb7ca2d6d50e, 2018-07-05T13:11:58.697Z)
OS version: Windows_NT x64 10.0.17134

Riproduci lo scenario di hot-exit di VS Code descritto nell’issue con un editor PowerShell senza titolo e con modifiche non salvate e un altro editor con il focus. Traccia il percorso di avvio dell’estensione e di attivazione della console integrata; il lavoro è completato quando la console rimane arrestata se l’editor PowerShell non viene ripristinato con il focus, continuando invece ad avviarsi quando ha il focus.