Introduce builtin for Array.slice function.

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 3f8ac436b634627ce276e93e337f705cb1664301..6d4501dd92807feb59b1673b7e9ea30277d3f6e1 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1496,6 +1496,8 @@ void Genesis::BuildSpecialFunctionTable() {
                      Handle<Code>(Builtins::builtin(Builtins::ArrayShift)));
   AddSpecialFunction(special_prototype, "unshift",
                      Handle<Code>(Builtins::builtin(Builtins::ArrayUnshift)));
+  AddSpecialFunction(special_prototype, "slice",
+                     Handle<Code>(Builtins::builtin(Builtins::ArraySlice)));
 }