false negative: constStatement with misused comma

[kidkat]

From #11250:

int main(void)
{
    int y;
    y = (3,4) ; // y becomes 4
    (void)y;
}

This regressed with 2.2.

[chrchr]

Probably an AST issue: AST looks ok:

int f(int i, int j) {
	i = 3, 4;
	j = (3, 4);
	return i + j;
}

##AST
[test2.cpp:2]
,
|-= 'signed int'
| |-i 'signed int'
| `-3 'signed int'
`-4 'signed int'

[test2.cpp:3]
= 'signed int'
|-j 'signed int'
`-,
  |-3 'signed int'
  `-4 'signed int'

[chrchr]

Fixed by ​https://github.com/danmar/cppcheck/pull/4365