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

tests/standalone/byte_array_test.dart

Index: tests/standalone/byte_array_test.dart
diff --git a/tests/standalone/byte_array_test.dart b/tests/standalone/byte_array_test.dart
index 9cb447e91e5d0abec5557f5c70176b832e8dbb3f..da7ed6e1ba18581acbea080916ce26fd131ad527 100644
--- a/tests/standalone/byte_array_test.dart
+++ b/tests/standalone/byte_array_test.dart
@@ -5,9 +5,9 @@
 // Dart test program for testing native byte arrays.
 
 // Library tag to be able to run in html test framework.
-#library("ByteArrayTest.dart");
+library ByteArrayTest;
 
-#import('dart:scalarlist');
+import 'dart:scalarlist';
 
 void testCreateUint8ByteArray() {
   Uint8List byteArray;