Highlight div_t

[omern1]

Partially fixes #126.

[winstliu]

Hi @nabeelomer, can you elaborate on how this only "partially fixes" #126? Is there another place that needs changes?

[omern1]

@50Wliu I'm extremely embarrassed. I read the issue wrong. I thought both div_t and the function div need to be highlighted.

[winstliu]

It looks like div_t only exists in C++ - can you please move this to the C++ file instead? Thanks.

[M4GNV5]

Nope, div is part of the C standard, here's the man page from section 3: http://man7.org/linux/man-pages/man3/div.3.html

however maybe these should also be added: ldiv_t, lldiv_t and imaxdiv_t

[winstliu]

Yes, it looks like I was mistaken. I will merge this now - @nabeelomer or @M4GNV5 feel free to create a new PR adding the other types.