Module hierarchy 

C++ type-hierarchy resolution: the include-visible class table and the namespace/alias search that turns a written base specifier into a CodeUnit.

analyzer/cpp/hierarchy.rs in brokk-bifrost-analysis keeps the TypeHierarchyProvider impl, the two moka caches it reads through and the test-support build counter; every decision they memoize is a function here.

Functions

build_cpp_visible_type_units

Every class-like or alias declaration reachable from file through its transitive #include closure, sorted and deduplicated.

cpp_resolve_direct_ancestors

The direct base classes of code_unit, resolved through the include-visible class table and canonicalized past any type-alias hops.