The indexer's judge refused manifests whose `packages` name a Go package that no
manifest declares as a package artifact: such a package has no series key, and
knownPackages took series keys only, though each module the trunk published has
a per-module record in the packages state naming its Go module and packages.
knownPackages (and the checker's PackageNames) now also count each record's
module and packages[].package; an unreadable state still judges no name.
Quick vs thorough: this is the quick fix, the smallest change that lets the
trunk's own records name what the manifests name. The thorough fix is that a
build module builds Go package artifacts, so every Go package gets a series
(the registry milestone); then the records stop being a source of names. Done
now because the 15 refused manifests hold the bootstrap of the registry delivery.
jschoubben
0f5c186b9c