Git console error when started on a non-existing workspace folder

[aeschli]

Create a workspace description where the first workspace folder doesn't exist

{
	"folders": [
		{
			"path": "../bla-bla"
		}
	],
	"settings": {
	}
}

Check the console:
[Extension Host] rejected promise not handled within 1 second (at Console.originalConsole.(anonymous function) [as warn] (/home/aeschli/workspaces/vscode/extensions/git/node_modules/diagnostic-channel-publishers/dist/src/console.pub.js:42:39))

[joaomoreno]

@aeschli This feels very wrong to me. This should be handled somewhere above. Otherwise, you're gonna need every extension to do fs.exists. IMO the git extension shouldn't even be activated if the folder doesn't exist.

[joaomoreno]

cc @bpasero