[BUG] JsonScan and from_json share fallback checks, but have hard coded names in the results

[revans2]

Describe the bug
JsonScan and from_json share a lot of code, but the checks on the JsonOptions object that is shared does not distinguish between the two. So we get errors like.

Expression <JsonToStructs> from_json(StructField(str,StringType,true), (allowComments,true), value#43, Some(UTC)) cannot run on GPU because GpuJsonScan does not support allowComments

Where it is for JsonToStructs, but references GpuJsonScan. We should either remove all references to the name of the operation being done, or we need to pass it in as a parameter when doing the checks.