Remove certain non-standard properties from Intl

test/intl/number-format/format-is-bound.js

Index: test/intl/number-format/format-is-bound.js
diff --git a/test/intl/number-format/format-is-bound.js b/test/intl/number-format/format-is-bound.js
index d93ee0067fac41c5c009fbe573bb03e77a8e4967..edb6a4b817b87bd56bce2fa796b9bb533905f132 100644
--- a/test/intl/number-format/format-is-bound.js
+++ b/test/intl/number-format/format-is-bound.js
@@ -28,6 +28,8 @@
 // Create default NumberFormat.
 var nf = new Intl.NumberFormat();
 
+var beforeCount = Object.getOwnPropertyNames(nf).length;
+
 // Array we want to iterate, actual numbers are not important.
 var numberArray = [1, 2, 3];
 
@@ -39,4 +41,4 @@ numberArray.forEach(nf.format);
 nf.format(12345);
 
 // Reading the format doesn't add any additional property keys
-assertEquals(1, Object.getOwnPropertyNames(nf).length);
+assertEquals(beforeCount, Object.getOwnPropertyNames(nf).length);