Fixed handling of polymorphic array accesses with constant index

src/property-details-inl.h

Index: src/property-details-inl.h
diff --git a/test/cctest/print-extension.h b/src/property-details-inl.h
similarity index 77%
copy from test/cctest/print-extension.h
copy to src/property-details-inl.h
index 7fe9226f7b48da3021496f63389eb71bb2971396..98eb1cf58e606c6d755210c91f18c21e51a8bfaa 100644
--- a/test/cctest/print-extension.h
+++ b/src/property-details-inl.h
@@ -25,23 +25,27 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_TEST_CCTEST_PRINT_EXTENSION_H_
-#define V8_TEST_CCTEST_PRINT_EXTENSION_H_
+#ifndef V8_PROPERTY_DETAILS_INL_H_
+#define V8_PROPERTY_DETAILS_INL_H_
 
-#include "v8.h"
+#include "objects.h"
+#include "property-details.h"
+#include "v8conversions.h"
 
 namespace v8 {
 namespace internal {
 
-class PrintExtension : public v8::Extension {
- public:
-  PrintExtension() : v8::Extension("v8/print", "native function print();") { }
-  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunctionTemplate(
-      v8::Isolate* isolate,
-      v8::Handle<v8::String> name);
-  static void Print(const v8::FunctionCallbackInfo<v8::Value>& args);
-};
+inline bool Representation::CanContainDouble(double value) {
+  if (IsDouble() || is_more_general_than(Representation::Double())) {
+    return true;
+  }
+  if (IsInt32Double(value)) {
+    if (IsInteger32()) return true;
+    if (IsSmi()) return Smi::IsValid(static_cast<int32_t>(value));
+  }
+  return false;
+}
 
 } }  // namespace v8::internal
 
-#endif
+#endif  // V8_PROPERTY_DETAILS_INL_H_