cgen: fix g.obf_table data missing(fix #19695)

[shove70]

This PR fixed g.obf_table data missing(fix #19695)

fn add(a int, b int) int {
	return a + b
}

fn main() {
	println(add(1, 3))
}

/* obf: main.add */
VV_LOCAL_SYMBOL int _f0(int a, int b) {
	int _t1 = (int)(a + b);
	return _t1;
}

VV_LOCAL_SYMBOL void main__main(void) {
	println(int_str(/* obf call: main.add */_f0(1, 3)));
}

v -obf run a.v

outputs:

4

[medvednikov]

Thanks! Ideally we need a small one line CI test with -obf too, I'll add it.