Review

class AnalyzePrototypeProperties.NameInfo {
    /**
     * Mark a reference in a given module to this property name, and record
     * the deepest common module reference.
     * @param module The module where it was referenced.
     * @return Whether the name info has changed.
     */
    boolean markReference(JSModule module) {
      boolean hasChanged = false;
      if (!referenced) {
        referenced = true;
        hasChanged = true;
      }

      if (moduleGraph != null) {
        JSModule originalDeepestCommon = deepestCommonModuleRef;

        if (deepestCommonModuleRef == null) {
          deepestCommonModuleRef = module;
        } else {
          deepestCommonModuleRef =
              moduleGraph.getDeepestCommonDependencyInclusive(
                  deepestCommonModuleRef, module);
        }

        if (originalDeepestCommon != deepestCommonModuleRef) {
          hasChanged = true;
        }
      }

      return hasChanged;
    }

}