nProjId is a byte, so it cannot be as large as any of the tests.  clang detected this.

git-svn-id: https://svn.osgeo.org/gdal/trunk@28220 f0d54148-0727-0410-94bb-9a71ac55c965
OGRCARTODBTableLayer::GetLayerDefnInternal poObjIn arg is unused

git-svn-id: https://svn.osgeo.org/gdal/trunk@28221 f0d54148-0727-0410-94bb-9a71ac55c965