Go schemas with URL tags cause syntax errors

[richardpeng]

What version of CUE are you using (cue version)?

$ cue version
cue version v0.10.0

go version go1.22.6
      -buildmode exe
       -compiler gc
     CGO_ENABLED 1
          GOARCH arm64
            GOOS darwin
cue.lang.version v0.10.0

$ env | grep CUE
CUE_EXPERIMENT=evalv3

Does this issue reproduce with the latest stable release?

Yes

What did you do?

go mod init example.com/teleport
go get github.com/gravitational/teleport/api/types
cue get go github.com/gravitational/teleport/api/types

What did you expect to see?

No syntax errors in cue.mod/gen/github.com/russellhaering/goxmldsig/types/signature_go_gen.cue

What did you see instead?

#InclusiveNamespaces: {
	XMLName:    xml.#Name @xml(http://www.w3.org/2001/10/xml-exc-c14n# InclusiveNamespaces)
	PrefixList: string    @xml(PrefixList,attr)
}

XMLName xml tags have URLs, but the // is interpreted as the start of a comment