public void preprocessUsages(Project project,
                               Set<PsiFile> files,
                               UsageInfo[] infos,
                               PsiDirectory targetDirectory,
                               MultiMap<PsiElement, String> conflicts) {}
public void preprocessUsages(Project project,
                               Set<PsiFile> files,
                               UsageInfo[] infos,
                               PsiDirectory targetDirectory,
                               MultiMap<PsiElement, String> conflicts)