Interop tests cause chrome.exe console dialogs popups

[Tratcher]

Run the tests from VS on your dev machine and you'll get a series of console dialog boxes opening. These should be hidden. @JunTaoLuo

[JunTaoLuo]

I'm still seeing popups for

KestrelHttpServer/test/Kestrel.Transport.FunctionalTests/HandleInheritanceTests.cs

Lines 40 to 44 in ad3cba5

	var processInfo = new ProcessStartInfo
	{
	FileName = "cmd.exe",
	CreateNoWindow = true,
	};

on full framework but we are just going to live with is as we plan to remove the full framework tests in 3.0