am b76c165a: Fix ClassCastException due to typo

* commit 'b76c165aadb4deb144ec3b1267aa1faf304638e9':
  Fix ClassCastException due to typo
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index 7879068..f3d94db 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -3868,7 +3868,7 @@
                 labelB = mLabelCache.get(b);
             } else {
                 labelB = (b instanceof LauncherAppWidgetProviderInfo)
-                        ? mManager.loadLabel((LauncherAppWidgetProviderInfo) a)
+                        ? mManager.loadLabel((LauncherAppWidgetProviderInfo) b)
                         : ((ResolveInfo) b).loadLabel(mPackageManager).toString().trim();
                 mLabelCache.put(b, labelB);
             }