57a849d made lagoon.Status read migrationSets, which changed its result
for consumers: the framework sets came first and a plugin with no
migrations lost its row. Status is back to its pre-57a849d behaviour.
migrate:status (table and --json) now reads the unexported setStatus,
which lists the framework sets and the plugins from migrationSets, so it
still agrees with migrate --pretend. Both share historyRows.
- TestStatusPluginRows pins Status: plugin rows only, an empty row for a
plugin with no migrations or no history table, none without HasMigrations
- TestMigrateStatusJSON also checks the table lists the framework sets
- TestTwoPluginMigrationSetsIsolated and TestDocsMigrate are back to the
plugin-only rows