HousenumberRoad throws a warning when addr:street from a node and name of the street the node is next to are not equal, even if they differ only in the capitalization. See for example nodes http://www.openstreetmap.org/node/2486105470 and http://www.openstreetmap.org/node/2486105464 (addr:street=carrer del Montseny) which are next to way http://www.openstreetmap.org/way/8590864 with name=Carrer del Montseny. One of the names is more correct than the other but, having in mind that Garmin changes capitalization arbitrarily, I'm not sure if we should keep these warnings. Another case to discuss is when one of addr:street or way name contains special letters and the other one not (eg. Asturies vs Astúries). Here one of the names is wrongly written and should be corrected in OSM data, so may be worth keeping the warning.