firFunctionDeclarations.add(function)
            super.visitFunction(function)
        }

        override fun visitLoop(loop: FirLoop) {
            firLoopStatements.add(loop)
            super.visitLoop(loop)
        }

        override fun visitReturnExpression(returnExpression: FirReturnExpression) {

    /**
     * Visit the root of each complete hierarchy contained in the set.
     */
    public abstract void visitRoots(RootVisitor visitor);

    public interface RootVisitor {
        void visitRoot(String absolutePath);
    }

    /**
     * The empty set.
     */
    public static FileHierarchySet empty() {
        return EMPTY;
    }

        TypeMetadataWalker.typeWalker(metadataStore, Nested.class).walk(topLevelType, new TypeMetadataWalker.StaticMetadataVisitor() {
            @Override
            public void visitRoot(TypeMetadata typeMetadata, TypeToken<?> value) {
                typeMetadata.visitValidationFailures(null, validationContext);
            }

            @Override

            this.registeredTypes = registeredTypes;
            this.softwareTypeImplementationsBuilder = softwareTypeImplementationsBuilder;
        }

        @Override
        public void visitRoot(TypeMetadata typeMetadata, TypeToken<?> value) {
        }

        @Override
        public void visitNested(TypeMetadata typeMetadata, String qualifiedName, PropertyMetadata propertyMetadata, TypeToken<?> value) {