task not run with integrated shell args

[pierlucgirard]

• VSCode Version: 1.14.2
• OS Version: Windows 10

Shell commands in tasks does not get run if there's a startup call linked to the integrated terminal.

shell.bat
echo Test

Steps to Reproduce:

1. Use these settings :

    "terminal.integrated.shell.windows": "C:\\Windows\\system32\\cmd.exe",
    "terminal.integrated.shellArgs.windows": [
         "/k .\\shell.bat"
    ],

with this task :

"version": "2.0.0",
"tasks": [{
    "taskName": "Hello World!",
    "command": "echo Hello World!",
    "type": "shell",
    "presentation": {
      "echo": true,
      "reveal": "always",
      "focus": false,
      "panel": "shared"
    }
  }

2. Run task.
3. See that "Test" is printed out, but not "Hello World!"

Reproduces without extensions: Yes

[dbaeumer]

Dups #32955