In-heap small typed arrays

src/runtime.h

Index: src/runtime.h
diff --git a/src/runtime.h b/src/runtime.h
index 7c74999ed3f3fdc49629e8297e14f5ec883c6580..28dbe3045ca5eaefd0d285091d83e5600c22a834 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -468,6 +468,15 @@ namespace internal {
   F(HasExternalUint32Elements, 1, 1) \
   F(HasExternalFloat32Elements, 1, 1) \
   F(HasExternalFloat64Elements, 1, 1) \
+  F(HasFixedUint8ClampedElements, 1, 1) \
+  F(HasFixedInt8Elements, 1, 1) \
+  F(HasFixedUint8Elements, 1, 1) \
+  F(HasFixedInt16Elements, 1, 1) \
+  F(HasFixedUint16Elements, 1, 1) \
+  F(HasFixedInt32Elements, 1, 1) \
+  F(HasFixedUint32Elements, 1, 1) \
+  F(HasFixedFloat32Elements, 1, 1) \
+  F(HasFixedFloat64Elements, 1, 1) \
   F(HasFastProperties, 1, 1) \
   F(TransitionElementsKind, 2, 1) \
   F(HaveSameMap, 2, 1) \
@@ -676,7 +685,8 @@ namespace internal {
   F(ConstructDouble, 2, 1)                                                   \
   F(TypedArrayInitialize, 5, 1)                                              \
   F(DataViewInitialize, 4, 1)                                                \
-  F(MaxSmi, 0, 1)
+  F(MaxSmi, 0, 1)                                                            \
+  F(TypedArrayMaxSizeInHeap, 0, 1)
 
 
 //---------------------------------------------------------------------------
@@ -868,7 +878,10 @@ class Runtime : public AllStatic {
   };
 
   static void ArrayIdToTypeAndSize(int array_id,
-      ExternalArrayType *type, size_t *element_size);
+      ExternalArrayType *type,
+      ElementsKind* external_elements_kind,
+      ElementsKind* fixed_elements_kind,
+      size_t *element_size);
 
   // Helper functions used stubs.
   static void PerformGC(Object* result, Isolate* isolate);