For building=roof without layer tag, intersecting with roads, footways, cycleways etc validator should mention that typical roof is above other objects and it should have "layer=1" tag

[mkoniecz]

"Crossing ways (1)" is quite mysterious "Roof crossing with other objects, maybe it should have layer=1 tag?" (or something like this) would be smarter.

Current report is quite confusing (for me, reporter of #9362 and probably others).

Note that after adding this special case layerless, intersecting roofs should not appear also in "Crossing ways" category.

I encountered this difficulty on ​osmwww:browse/way/248676077

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-11-25 02:34:44
Last Changed Author: Don-vip
Revision: 6413
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-11-25 02:19:43 +0100 (Mon, 25 Nov 2013)
Last Changed Rev: 6413

Identification: JOSM/1.5 (6413 en_GB) Windows 7 32-Bit
Memory Usage: 108 MB / 247 MB (31 MB allocated, but free)
Java version: 1.7.0_45, Oracle Corporation, Java HotSpot(TM) Client VM
Dataset consistency test: No problems found

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