resourceType is not a part of the ObjectModel, and cannot be used in FhirPath

[bdc-ehealth]

See remarks by @brianpos on Zulip: https://chat.fhir.org/#narrow/stream/179167-hapi/topic/resourceType.20and.20fhirpath

[plynchnlm]

It is not part of the FHIR object model, but FHIRPath is more general that just FHIR; there could be cases where "resourceType" is valid. In general, fhirpath.js does not limit you to paths known from the object model. That would require extra checking which would make it slower. That being said, I admit it is tempting to use the resourceType field which everyone can see in the JSON of a FHIR resource. Perhaps we should output a warning in that case if a FHIR model is supplied.

[bdc-ehealth]

Anything diminishing the variability between implementations is welcome...