Index all repository URIs, not just the "primary" repository URI

Summary:
Ref T10923. When regenerating the URI index for a repository, index every URI.

  - Also, make the index slightly stricter (domain + path instead of just path). Excluding the domain made more sense when we were generating only first-party URIs.
  - Make the index smarter about `/diffusion/123/` URIs.
  - Show normalized URIs in `diffusion.repository.search` results.

Test Plan:
  - Ran migration.
  - Verified sensible-looking results in database.
  - Searched for a repository URI by first-party clone URI.
  - Searched for a repository URI by mirror URI.
  - Used `diffusion.repository.search` to get information about repository URIs.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15876

src/applications/repository/query/PhabricatorRepositorySearchEngine.php

@@ -38,6 +38,11 @@ final class PhabricatorRepositorySearchEngine
         ->setLabel(pht('Types'))
         ->setKey('types')
         ->setOptions(PhabricatorRepositoryType::getAllRepositoryTypes()),
+      id(new PhabricatorSearchStringListField())
+        ->setLabel(pht('URIs'))
+        ->setKey('uris')
+        ->setDescription(
+          pht('Search for repositories by clone/checkout URI.')),
     );
   }
 
@@ -70,6 +75,10 @@ final class PhabricatorRepositorySearchEngine
       $query->withNameContains($map['name']);
     }
 
+    if ($map['uris']) {
+      $query->withURIs($map['uris']);
+    }
+
     return $query;
   }