vlib/v/checker/tests/if_expr_mismatch.vv:2:10: notice: condition is always true
    1 | fn main() {
    2 |     s := if true { '12' } else { 12 }
      |             ~~~~
    3 |     println(s)
    4 | }
vlib/v/checker/tests/if_expr_mismatch.vv:2:7: error: mismatched types `string` and `int literal`
    1 | fn main() {
    2 |     s := if true { '12' } else { 12 }
      |          ~~
    3 |     println(s)
    4 | }