A plugin developed inside an application replaces its required plugins
with sibling directories (../user). Checked out on its own, that
directory is missing and plugin.yaml lost the minimum (golem15.user: ""),
so the manifest differed between the two layouts and TestPluginManifest
could not pass in both. Such a module is now fetched at the version
go.mod requires, as a consumer would see it.
- listedModule.fallback marks a local replace whose directory is absent
- fallback modules download separately, so one unfetchable version does
not hold up the others
- TestDeriveMissingReplace over a file:// proxy (offline)
- kiosk.ReadIdentity: ID()/Requires() as literals or constants across packages and modules, read with go/parser, never run
- plugin minimums from go.mod requires; v0.0.0 is an error, a pseudo-version warns
- kiosk.Validate, kiosk.CheckT (no testing import)
- plugin:add reads IDs through kiosk.ReadIdentity, so const-ID plugins register
