Use __CLASS__ instead of hard-coding class names

Summary: Use `__CLASS__` instead of hard-coding class names. Depends on D12605.

Test Plan: Eyeball it.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12806

src/applications/phid/handle/pool/PhabricatorHandleList.php

@@ -158,8 +158,9 @@ final class PhabricatorHandleList
   private function raiseImmutableException() {
     throw new Exception(
       pht(
-        'Trying to mutate a PhabricatorHandleList, but this is not permitted; '.
-        'handle lists are immutable.'));
+        'Trying to mutate a %s, but this is not permitted; '.
+        'handle lists are immutable.',
+        __CLASS__));
   }
 
 

src/applications/phid/type/PhabricatorPHIDType.php

@@ -169,9 +169,13 @@ abstract class PhabricatorPHIDType {
           $that_class = $original[$type];
           $this_class = get_class($object);
           throw new Exception(
-            "Two PhabricatorPHIDType classes ({$that_class}, {$this_class}) ".
-            "both handle PHID type '{$type}'. A type may be handled by only ".
-            "one class.");
+            pht(
+              "Two %s classes (%s, %s) both handle PHID type '%s'. ".
+              "A type may be handled by only one class.",
+              __CLASS__,
+              $that_class,
+              $this_class,
+              $type));
         }
 
         $original[$type] = get_class($object);