private static List<FunctionDescriptor> getSuperFunctionsForMethod(
      @NotNull PsiMethodWrapper method,
      @NotNull BindingTrace trace,
      @NotNull ClassDescriptor containingClass) {
    List<FunctionDescriptor> superFunctions = Lists.newArrayList();

    Map<ClassDescriptor, JetType> superclassToSupertype =
        getSuperclassToSupertypeMap(containingClass);

    Multimap<FqName, Pair<FunctionDescriptor, PsiMethod>> superclassToFunctions =
        getSuperclassToFunctionsMultimap(method, trace.getBindingContext(), containingClass);

    for (HierarchicalMethodSignature superSignature :
        method.getPsiMethod().getHierarchicalMethodSignature().getSuperSignatures()) {
      PsiMethod superMethod = superSignature.getMethod();

      PsiClass psiClass = superMethod.getContainingClass();
      assert psiClass != null;
      String classFqNameString = psiClass.getQualifiedName();
      assert classFqNameString != null;
      FqName classFqName = new FqName(classFqNameString);

      if (!JavaToKotlinClassMap.getInstance().mapPlatformClass(classFqName).isEmpty()) {
        for (FunctionDescriptor superFun :
            JavaToKotlinMethodMap.INSTANCE.getFunctions(superMethod, containingClass)) {
          superFunctions.add(substituteSuperFunction(superclassToSupertype, superFun));
        }
        continue;
      }

      DeclarationDescriptor superFun =
          superMethod instanceof JetClsMethod
              ? trace.get(
                  BindingContext.DECLARATION_TO_DESCRIPTOR,
                  ((JetClsMethod) superMethod).getOrigin())
              : findSuperFunction(superclassToFunctions.get(classFqName), superMethod);
      if (superFun == null) {
        reportCantFindSuperFunction(method);
        continue;
      }

      assert superFun instanceof FunctionDescriptor : superFun.getClass().getName();

      superFunctions.add(
          substituteSuperFunction(superclassToSupertype, (FunctionDescriptor) superFun));
    }

    // sorting for diagnostic stability
    Collections.sort(
        superFunctions,
        new Comparator<FunctionDescriptor>() {
          @Override
          public int compare(FunctionDescriptor fun1, FunctionDescriptor fun2) {
            FqNameUnsafe fqName1 = getFQName(fun1.getContainingDeclaration());
            FqNameUnsafe fqName2 = getFQName(fun2.getContainingDeclaration());
            return fqName1.getFqName().compareTo(fqName2.getFqName());
          }
        });
    return superFunctions;
  }
  @NotNull
  @Override
  public String render(@NotNull DeclarationDescriptor declarationDescriptor) {
    StringBuilder stringBuilder = new StringBuilder();
    declarationDescriptor.accept(new RenderDeclarationDescriptorVisitor(), stringBuilder);

    if (withDefinedIn) {
      appendDefinedIn(declarationDescriptor, stringBuilder);
    }
    return stringBuilder.toString();
  }
  @NotNull
  private String renderClassName(@NotNull ClassDescriptor klass) {
    if (ErrorUtils.isError(klass)) {
      return klass.getTypeConstructor().toString();
    }
    if (shortNames) {
      List<Name> qualifiedNameElements = Lists.newArrayList();

      // for nested classes qualified name should be used
      DeclarationDescriptor current = klass;
      do {
        if (((ClassDescriptor) current).getKind() != ClassKind.CLASS_OBJECT) {
          qualifiedNameElements.add(current.getName());
        }
        current = current.getContainingDeclaration();
      } while (current instanceof ClassDescriptor);

      Collections.reverse(qualifiedNameElements);
      return renderFqName(qualifiedNameElements);
    }
    return renderFqName(DescriptorUtils.getFQName(klass));
  }
  /* METHODS FOR ALL KINDS OF DESCRIPTORS */
  private void appendDefinedIn(
      @NotNull DeclarationDescriptor descriptor, @NotNull StringBuilder builder) {
    if (descriptor instanceof ModuleDescriptor) {
      builder.append(" is a module");
      return;
    }
    builder.append(" ").append(renderMessage("defined in")).append(" ");

    DeclarationDescriptor containingDeclaration = descriptor.getContainingDeclaration();
    if (containingDeclaration != null) {
      FqNameUnsafe fqName = DescriptorUtils.getFQName(containingDeclaration);
      builder.append(FqName.ROOT.equalsTo(fqName) ? "root package" : renderFqName(fqName));
    }
  }
 private String nameForAssertions() {
   DeclarationDescriptor owner = getContainingDeclaration();
   return getName() + " declared in " + (owner == null ? "<no owner>" : owner.getName());
 }
 private void renderName(
     @NotNull DeclarationDescriptor descriptor, @NotNull StringBuilder builder) {
   builder.append(renderName(descriptor.getName()));
 }