Remove old #import, #source, and #library syntax from tests/standalone.

tests/standalone/io/test_runner_exit_code_script.dart

Index: tests/standalone/io/test_runner_exit_code_script.dart
diff --git a/tests/standalone/io/test_runner_exit_code_script.dart b/tests/standalone/io/test_runner_exit_code_script.dart
index 37fbc8ef68a647bb14b5cbcdde498e8102281d75..ca55e4b63495f8d215187aa9c25608afe7f6023e 100644
--- a/tests/standalone/io/test_runner_exit_code_script.dart
+++ b/tests/standalone/io/test_runner_exit_code_script.dart
@@ -4,9 +4,9 @@
 
 // Simulates a use of test_progress during a failing run of test.dart.
 
-#import("../../../tools/testing/dart/test_progress.dart");
-#import("../../../tools/testing/dart/test_runner.dart");
-#import("../../../tools/testing/dart/test_options.dart");
+import "../../../tools/testing/dart/test_progress.dart";
+import "../../../tools/testing/dart/test_runner.dart";
+import "../../../tools/testing/dart/test_options.dart";
 
 main() {
   var progressType = new Options().arguments[0];