Remaining changes to fully support FastDoubleArray.

test/mjsunit/unbox-double-arrays.js

Index: test/mjsunit/unbox-double-arrays.js
diff --git a/test/mjsunit/unbox-double-arrays.js b/test/mjsunit/unbox-double-arrays.js
index 2d858939dc000608c6f65e98eaa83f305a9c05db..feecaec8f0f062bd0281ac79a59341c3c4bde8ec 100644
--- a/test/mjsunit/unbox-double-arrays.js
+++ b/test/mjsunit/unbox-double-arrays.js
@@ -29,12 +29,12 @@
 
 // Flags: --allow-natives-syntax --unbox-double-arrays --expose-gc
 var large_array_size = 100000;
-var approx_dict_to_elements_threshold = 75000;
+var approx_dict_to_elements_threshold = 70000;
 
 var name = 0;
 
 function expected_array_value(i) {
-  if ((i % 2) == 0) {
+  if ((i % 50) != 0) {
     return i;
   } else {
     return i + 0.5;
@@ -467,6 +467,17 @@ test_for_in();
 test_for_in();
 test_for_in();
 
+function test_get_property_names() {
+  names = %GetPropertyNames(large_array3);
+  property_name_count = 0;
+  for (x in names) { property_name_count++; };
+  assertEquals(26, property_name_count);
+}
+
+test_get_property_names();
+test_get_property_names();
+test_get_property_names();
+
 // Test elements getters.
 assertEquals(expected_array_value(10), large_array3[10]);
 assertEquals(expected_array_value(-NaN), large_array3[2]);