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

tests/standalone/float_array_test.dart

Index: tests/standalone/float_array_test.dart
diff --git a/tests/standalone/float_array_test.dart b/tests/standalone/float_array_test.dart
index 6ac8a039489d884a449491bbdfa16b60a61a59d5..99ffcaba969c7e082f8348fde99853e01fc364a5 100644
--- a/tests/standalone/float_array_test.dart
+++ b/tests/standalone/float_array_test.dart
@@ -5,9 +5,9 @@
 // Dart test program for testing native float arrays.
 
 // Library tag to be able to run in html test framework.
-#library("FloatArrayTest.dart");
+library FloatArrayTest;
 
-#import('dart:scalarlist');
+import 'dart:scalarlist';
 
 void testCreateFloat32Array() {
   Float32List floatArray;