Better support for 'polymorphic' JS and external arrays

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index e3d21cc658ea6d2445c22ebab33fedc3033bb969..12e9639c61bddd76d63b92fcb76c7e70255456fd 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -2588,7 +2588,6 @@ Code::ExtraICState Code::extra_ic_state() {
 
 
 PropertyType Code::type() {
-  ASSERT(ic_state() == MONOMORPHIC);
   return ExtractTypeFromFlags(flags());
 }
 
@@ -2706,14 +2705,14 @@ void Code::set_check_type(CheckType value) {
 
 
 ExternalArrayType Code::external_array_type() {
-  ASSERT(is_external_array_load_stub() || is_external_array_store_stub());
+  ASSERT(is_keyed_load_stub() || is_keyed_store_stub());
   byte type = READ_BYTE_FIELD(this, kExternalArrayTypeOffset);
   return static_cast<ExternalArrayType>(type);
 }
 
 
 void Code::set_external_array_type(ExternalArrayType value) {
-  ASSERT(is_external_array_load_stub() || is_external_array_store_stub());
+  ASSERT(is_keyed_load_stub() || is_keyed_store_stub());
   WRITE_BYTE_FIELD(this, kExternalArrayTypeOffset, value);
 }