implementation header suggested for `struct timeval`

[firewave]

#include <sys/time.h>

void f()
{
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    (void)tv;
}

<source>:1:1: warning: included header time.h is not used directly [misc-include-cleaner]
    1 | #include <sys/time.h>
      | ^~~~~~~~~~~~~~~~~~~~~
    2 | 
<source>:5:12: warning: no header providing "timeval" is directly included [misc-include-cleaner]
    1 | #include <sys/time.h>
    2 | 
    3 | void f()
    4 | {
    5 |     struct timeval tv;
      |            ^
2 warnings generated.

clang-include-cleaner-17 --print=changes reports:

- <sys/time.h> @Line:1
+ <bits/types/struct_timeval.h>

See
https://pubs.opengroup.org/onlinepubs/7908799/xsh/systime.h.html
https://man7.org/linux/man-pages/man2/settimeofday.2.html

[llvmbot]

@llvm/issue-subscribers-clang-include-cleaner