Indexing Kythe go targets can't resolve imports.

[robinp]

$ ./kythe/extractors/bazel/extract.sh --go "$PWD" .comps
$ bazel-bin/kythe/go/indexer/cmd/go_indexer/go_indexer $(find bazel-out/k8-fastbuild/extra_actions/kythe/go/extractors/cmd/bazel/extra_action/kythe/go/ -name '**.kzip') | bazel-bin/kythe/go/storage/tools/write_entries/write_entries -graphstore /tmp/ky.gs                                                            
2018/10/02 22:59:48 Unable to resolve import path "kythe.io/kythe/go/services/xrefs"                                                                                                             
2018/10/02 22:59:48 Unable to resolve import path "kythe.io/kythe/go/storage/table"                                                                                                             
2018/10/02 22:59:48 Unable to resolve import path "bitbucket.org/creachadair/stringset"
...

Does the extractor work as expected? Or do I miss some mapping? Thank you!

[salguarnieri]

That seems like a bug. I was able to reproduce it locally after making some updates to the extract script in #3115.

[robinp]

Still reproduces on current head. Do you have a hint what could cause this?

Not sure if related, but it looks like the package names emit defines/binding to an empty package path. Just saying.

Edit: hm, this could actually be a cause, no wonder that the package path was not found then. The question might be why.

Edit: I have a lead on this.