Warn about tagging used on wrong geometry

[flacombe]

Dear maintainers,

It seems that iD currently doesn't check for tagging versus geometry used. I don't blame anyone on this, it's only an opportunity to propose something that could improve data quality and offer better guidance to iD users.
A quick look at existing issues didn't find duplicate of this problem

Some OSM tags are only valid on nodes, like barrier=block
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dblock

Using such tags on a way, area or relation should raise a warning as to encourage mappers to check documentation and change their topology.

Similar situation exist with highway=primary for instance, only valid on ways.
Using it on a node should raise a warning as well

This is related to #6779 with power=transformer and transformer=* that are only valid on nodes.
Current usage of 14 500 power=transformer and 5 800 transformer=* on ways are errors but iD users may be not aware of this.

All the best

[quincylvania]

Sure, iD flags a few "Mismatched Geometry" situations already so it would be nice to be more encompassing.

[quincylvania]

Okay, I think I added all the remaining combinations of mismatched points/vertices/lines/areas. These might need some tweaking but will make for some useful checks.

[flacombe]

Thank you Quincy, how fast you are 👍

[quincylvania]

Thank you Quincy, how fast you are 👍

Sometimes!