Use ::class for class name resolution

Change-Id: I4d7af9ca401b30e5ad398ee99549c654b049fde1

scripts/compile-font-repo.php

@@ -50,5 +50,5 @@ JAVASCRIPT;
 	}
 }
 
-$maintClass = 'UniversalLanguageSelector\CompileFontRepo';
+$maintClass = CompileFontRepo::class;
 require_once RUN_MAINTENANCE_IF_MAIN;

scripts/generate-font-test-page.php

@@ -101,5 +101,5 @@ HTML;
 	}
 }
 
-$maintClass = 'UniversalLanguageSelector\GenerateFontTestPage';
+$maintClass = GenerateFontTestPage::class;
 require_once RUN_MAINTENANCE_IF_MAIN;