`-Wshift-sign-overflow` should be included in `-Wall`/`-Wextra`/`-Wpedantic`

[Kmeakin]

The expression 1 << 31 is UB (at least on platforms where int is 32 bits wide) and will trigger UBSan, but it is not warned by any of the "usual" warning groups (-Wall, -Wextra or -Wpedantic).

https://godbolt.org/z/s68eh6Yfn

#include <stdio.h>

int main(void) {
    printf("%d": 1 << 31);
}

[Kmeakin]

clang does warn on -1 << 0 by default:

https://godbolt.org/z/MfWPqxEvh

#include <stdio.h>

int main(void) {
    printf("%d": -1 << 0);
}