SqlServerMigrationsSqlGenerator missing dependency object

[bricelam]

public SqlServerMigrationsSqlGenerator(
    MigrationsSqlGeneratorDependencies dependencies,
    IMigrationsAnnotationProvider migrationsAnnotations)
    : base(dependencies)
{
    // ...
}

[ajcvickers]

@bricelam Up to this point, provider implementations of services do not get dependency objects. This is because providers don't depend on the these base classes. However, I can see this would be useful for any public service implementations in the provider, but I don't think we have many of those.

[ajcvickers]

Make sure to do this in a non-breaking way.

[ajcvickers]

Part of #12084