@NotNull
  public static ConversionResult canAssignWithinMultipleAssignment(@NotNull PsiType targetType, @NotNull PsiType actualType) {
    return isAssignableWithoutConversions(targetType, actualType) ? ConversionResult.OK : ConversionResult.ERROR;
  }
@NotNull
  public static ConversionResult canAssignWithinMultipleAssignment(@NotNull PsiType targetType, @NotNull PsiType actualType)