RISC-V Translation

I saw something weird and I didn't really know where to report it, hope this is okay.

In C, I noticed a test case that made no sense:

    {
        const unsigned expected[COUNTS_SIZE] = { ['A'] = 1, ['b'] = 2, ['?'] = 3 };
        tester("aabb", expected);
    }

Unless I'm missing something, the expected result should not contain 'A' or '?'.

Also, every other test was commented, so I came to raise an issue. However, I wanted to double check before posting, and now all the tests are okay and uncommented. Furthermore, seems like one of the tests in the "Test cases" section is missing when you try to solve the kata (the last one).

Is this normal? Was someone messing up with this kata?

CoffeeScript translation

Still a duplicate.

Another groupBy kata. What makes this one different?