We have

• napi_is_array (val->IsArray())
• napi_is_buffer (node::Buffer::HasInstance())
• napi_is_arraybuffer (val->IsArrayBuffer())
• napi_is_typedarray (val->IsTypedArray())

that have NAPI_PREAMBLE(), whereas

• napi_is_error (val->IsNativeError())

does not have it.

I don't believe the ones above that have NAPI_PREAMBLE() need it, for the same reason that napi_typeof() doesn't need it. What do @nodejs/addon-api think?