token,
        )
    }
    add(FirErrors.OPT_IN_ARGUMENT_IS_NOT_MARKER) { firDiagnostic ->
        OptInArgumentIsNotMarkerImpl(
            firDiagnostic.a,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.OPT_IN_MARKER_WITH_WRONG_TARGET) { firDiagnostic ->
        OptInMarkerWithWrongTargetImpl(
            firDiagnostic.a,

    return new HashMap<>(capacity(expectedSize));
  }

  /**
   * Returns a capacity that is sufficient to keep the map from being resized as long as it grows no
   * larger than expectedSize and the load factor is ≥ its default (0.75).
   */
  static int capacity(int expectedSize) {
    if (expectedSize < 3) {
      checkNonnegative(expectedSize, "expectedSize");