references: Larger importgraph for test
references: Larger importgraph for test

I was making some manual changes to test incremental importgraph references
code. I still need to create automated tests for these changes.

lambdalab/go-langserver,lambdalab/go-langserver,sourcegraph/go-langserver,sourcegraph/go-langserver,lambdalab/go-langserver,sourcegraph/go-langserver