Created by: mrnugget
This fixes inconsistent behaviour in our GitBlobLSIFData resolver that
would cause the Locations being returned in the
definitions/references/... having /tree/ as opposed to /blob/ in
their URL.
tree is only meant to be used for directories and not files, though,
which is why the produced URLs that include line ranges would be
redirected by our web application.
So this changes the second parameter of gql.CreateFileInfo to
correctly say that the locations are not directories, but files.