public TypeMigrationUsageInfo[] getMigratedUsages(boolean autoMigrate, PsiElement... roots) {
    if (myMigratedUsages == null) {
      migrate(autoMigrate, roots);
      myMigratedUsages = getMigratedUsages();
    }
    return myMigratedUsages;
  }
public TypeMigrationUsageInfo[] getMigratedUsages(boolean autoMigrate, PsiElement... roots)