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/view/AphrontDialogView.php

@@ -292,7 +292,7 @@ final class AphrontDialogView extends AphrontView {
 
     if ($errors) {
       $children = array(
-        id(new PHUIErrorView())->setErrors($errors),
+        id(new PHUIInfoView())->setErrors($errors),
         $children,
       );
     }