public static MultiMap<PsiElement, String> checkConflicts(MemberInfoBase<? extends GrMember>[] infos,
                                                            PsiClass subclass,
                                                            @Nullable PsiClass superClass,
                                                            @NotNull PsiPackage targetPackage,
                                                            @NotNull PsiDirectory targetDirectory,
                                                            final InterfaceContainmentVerifier interfaceContainmentVerifier) {
    return checkConflicts(infos, subclass, superClass, targetPackage, targetDirectory, interfaceContainmentVerifier, true);
  }
public static MultiMap<PsiElement, String> checkConflicts(MemberInfoBase<? extends GrMember>[] infos,
                                                            PsiClass subclass,
                                                            @Nullable PsiClass superClass,
                                                            @NotNull PsiPackage targetPackage,
                                                            @NotNull PsiDirectory targetDirectory,
                                                            final InterfaceContainmentVerifier interfaceContainmentVerifier)