LibJS: Make ParserError::to_string infallible

Author: https://github.com/shannonbooth
Commit: 0090b916dd
Pull-request: https://github.com/SerenityOS/serenity/pull/23817
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/trflynn89

Userland/Libraries/LibJS/Contrib/Test262/262Object.cpp

@@ -100,7 +100,7 @@ JS_DEFINE_NATIVE_FUNCTION($262Object::eval_script)
         auto& error = script_or_error.error()[0];
 
         // b. Return Completion { [[Type]]: throw, [[Value]]: error, [[Target]]: empty }.
-        return vm.throw_completion<SyntaxError>(TRY_OR_THROW_OOM(vm, error.to_string()));
+        return vm.throw_completion<SyntaxError>(error.to_string());
     }
 
     // 5. Let status be ScriptEvaluation(s).