Replace shuffle getters with shuffle method and masks.

tests/lib/typed_data/float32x4_cross_test.dart

Index: tests/lib/typed_data/float32x4_cross_test.dart
diff --git a/tests/lib/typed_data/float32x4_cross_test.dart b/tests/lib/typed_data/float32x4_cross_test.dart
index 0816846ce062e9324d8826eae796c949726ba54a..32684883a55af45e5c94f93a1e08d4567a033e7e 100644
--- a/tests/lib/typed_data/float32x4_cross_test.dart
+++ b/tests/lib/typed_data/float32x4_cross_test.dart
@@ -10,11 +10,11 @@ import 'dart:typed_data';
 import 'package:expect/expect.dart';
 
 Float32x4 cross(Float32x4 a, Float32x4 b) {
-  var t0 = a.yzxw;
-  var t1 = b.zxyw;
+  var t0 = a.shuffle(Float32x4.YZXW);
+  var t1 = b.shuffle(Float32x4.ZXYW);
   var l = t0 * t1;
-  t0 = a.zxyw;
-  t1 = b.yzxw;
+  t0 = a.shuffle(Float32x4.ZXYW);
+  t1 = b.shuffle(Float32x4.YZXW);
   var r = t0 * t1;
   return l-r;
 }