User-defined literals are not correctly highlighted in QtCreator 6 beta1.

#include <cstring>
#include <iostream>

size_t operator""_len(const char *, size_t length)
{
    return length;
}

size_t getLength(const char *str)
{
    return std::strlen(str);
}

int main(int, char *[])
{
    const auto len = "length tst"_len; // This line shows the problem.
    const auto len2 = getLength("length tst");

    len, len2;
}