Implement tracking and optimizations of packed arrays

test/mjsunit/elements-kind.js

Index: test/mjsunit/elements-kind.js
diff --git a/test/mjsunit/elements-kind.js b/test/mjsunit/elements-kind.js
index 4aa79de659836a2862f19e9f9be4066d15268d1f..75fdd9fccfea8ab8102a76a01700915a9e89e123 100644
--- a/test/mjsunit/elements-kind.js
+++ b/test/mjsunit/elements-kind.js
@@ -34,7 +34,7 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
-support_smi_only_arrays = %HasFastSmiOnlyElements(new Array(1,2,3,4,5,6,7,8));
+support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 
 if (support_smi_only_arrays) {
   print("Tests include smi-only arrays.");
@@ -59,8 +59,8 @@ var elements_kind = {
 }
 
 function getKind(obj) {
-  if (%HasFastSmiOnlyElements(obj)) return elements_kind.fast_smi_only;
-  if (%HasFastElements(obj)) return elements_kind.fast;
+  if (%HasFastSmiElements(obj)) return elements_kind.fast_smi_only;
+  if (%HasFastObjectElements(obj)) return elements_kind.fast;
   if (%HasFastDoubleElements(obj)) return elements_kind.fast_double;
   if (%HasDictionaryElements(obj)) return elements_kind.dictionary;
   // Every external kind is also an external array.