More fixins to get error message.

exec/tests/test.js

@@ -79,14 +79,14 @@ function run_tests(location, obj)
 				chdir(js.exec_dir);
 				if (result instanceof Error) {
 					tfailed = true;
-					fail_msg = e.toString();
+					fail_msg = result.toString();
 					log("Caught: "+result);
 				}
 			}
 			catch(e) {
 				tfailed = true;
 				fail_msg = e.toString();
-				log("Caught: "+e);
+				log("Caught: "+fail_msg);
 			}
 			if (tfailed) {
 				stdout.writeln("FAILED!");