Add add and subtract operations to Uint32x4

runtime/lib/typed_data.dart

Index: runtime/lib/typed_data.dart
diff --git a/runtime/lib/typed_data.dart b/runtime/lib/typed_data.dart
index 4e76c27b32044a32bae6b12cd34bdaf873a71cea..c4e9259dc0521c5e3244bb8ba580b6f5fee8a66c 100644
--- a/runtime/lib/typed_data.dart
+++ b/runtime/lib/typed_data.dart
@@ -2081,6 +2081,14 @@ class _Uint32x4 implements Uint32x4 {
     return _xor(other);
   }
   Uint32x4 _xor(Uint32x4 other) native "Uint32x4_xor";
+  Uint32x4 operator +(Uint32x4 other) {
+    return _add(other);
+  }
+  Uint32x4 _add(Uint32x4 other) native "Uint32x4_add";
+  Uint32x4 operator -(Uint32x4 other) {
+    return _sub(other);
+  }
+  Uint32x4 _sub(Uint32x4 other) native "Uint32x4_sub";
   int get x native "Uint32x4_getX";
   int get y native "Uint32x4_getY";
   int get z native "Uint32x4_getZ";