public static int getLogBaseTwo(PsiLiteralExpression rhs) {
    final Object value = rhs.getValue();
    int log = 0;
    if (value == null) {
      return log;
    }
    int intValue = ((Number)value).intValue();
    while (intValue % 2 == 0) {
      intValue >>= 1;
      log++;
    }
    return log;
  }
public static int getLogBaseTwo(PsiLiteralExpression rhs)