Move PHUIErrorView to PHUIInfoView

Summary: Since this element isn't strictly about errors, re-label as info view instead.

Test Plan: Grepped for all callsites, tested UIExamples and a few other random pages.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11867

src/applications/differential/controller/DifferentialRevisionLandController.php

@@ -52,7 +52,7 @@ final class DifferentialRevisionLandController extends DifferentialController {
         } else {
           $text = phutil_tag('pre', array(), $ex->getMessage());
         }
-        $text = id(new PHUIErrorView())
+        $text = id(new PHUIInfoView())
            ->appendChild($text);
       }