SHP Provider: Multi-polygon geometry type is not exposed via GetGeometryComponentTypes()

[danstoica]

This is a legacy defect in ShpLpClassDefinition::ConvertPhysicalToLogicalGeometryProperty(), line #753:

case ePolygonShape:

geomTypesDest[0] = FdoGeometryType_Polygon; geomTypeCount=1;

It should read instead:

case ePolygonShape:

geomTypesDest[0] = FdoGeometryType_Polygon; geomTypesDest[1] = FdoGeometryType_MultiPolygon; geomTypeCount=2;

(the same for other types of polygons)

The rationale is that in fact SHP provider allows both Polygon and multi-Polygon features in the same file. Thus ShpGeometryCapabilities::GetGeometryComponentTypes() should return both Polygon and Multipolygon types, similar to the LineString.