Legacy module symbol guard.
MIGRATION NOTE: Refactor to distinct ModuleDeclaration, ModuleReference, and description interfaces. Do not substitute a single new guard; use the appropriate interface shapes directly.
Remove usage; branch on new module interfaces instead.
Legacy module symbol guard.
MIGRATION NOTE: Refactor to distinct ModuleDeclaration, ModuleReference, and description interfaces. Do not substitute a single new guard; use the appropriate interface shapes directly.