split api call stubs into accessor and function call stubs

src/interface-descriptors.h

Index: src/interface-descriptors.h
diff --git a/src/interface-descriptors.h b/src/interface-descriptors.h
index 5d02e84ebd9043d17185e8e18d094c2636bdb516..2de7469758a7e93594b92492feb90943b140ffe2 100644
--- a/src/interface-descriptors.h
+++ b/src/interface-descriptors.h
@@ -47,8 +47,9 @@ class PlatformInterfaceDescriptor;
   V(Named)                                    \
   V(CallHandler)                              \
   V(ArgumentAdaptor)                          \
-  V(ApiGetter)                                \
   V(ApiFunction)                              \
+  V(ApiAccessor)                              \
+  V(ApiGetter)                                \
   V(ArgumentsAccessRead)                      \
   V(StoreArrayLiteralElement)                 \
   V(MathPowTagged)                            \
@@ -443,6 +444,12 @@ class ApiFunctionDescriptor : public CallInterfaceDescriptor {
 };
 
 
+class ApiAccessorDescriptor : public CallInterfaceDescriptor {
+ public:
+  DECLARE_DESCRIPTOR(ApiAccessorDescriptor, CallInterfaceDescriptor)
+};
+
+
 class ApiGetterDescriptor : public CallInterfaceDescriptor {
  public:
   DECLARE_DESCRIPTOR(ApiGetterDescriptor, CallInterfaceDescriptor)