* src/libexpr/expr-to-xml.cc (nix::showAttrs): Dereference the attribute RHS. Add "path", "line", and "column" XML attributes to the node when source location information is available. (nix::printTermAsXML): Likewise for functions.
* src/libexpr/expr-to-xml.cc (nix::showAttrs): Dereference the attribute RHS. Add "path", "line", and "column" XML attributes to the node when source location information is available. (nix::printTermAsXML): Likewise for functions.