It would be nice if the encoding/xml package would allow to unmarshal unknown / not
explicitly mapped XML elements as raw XML.

This could be achieved by either allowing to combine the ",innerxml" and
",any" tags for struct fields or by introducing a new tag ",anyxml"
or something similar.

Example:

type MyStruct struct {
    Name string   `xml:"name"`
    Rest []string `xml:",any,innerxml"`
}