private Set<ComponentSpecification> toComponentSpecifications(Collection<String> symbols) {
        Set<ComponentSpecification> specifications = new LinkedHashSet<>();
        for (String symbol : symbols) {
            specifications.add(new ComponentSpecification(symbol));
        }
        return specifications;
    }
Build an Inheritance object from an inheritance section.
@author Tony Vaagenes
config-model/src/main/java/com/yahoo/vespa/model/builder/xml/dom/chains/InheritanceBuilder.java