Match branch pattern guards are not parsed

[JRI98]

match value {
    x if x > 0 => "positive: ${x.to_str()}",
    x if x < 0 => "negative: ${x.to_str()}",
    _ => "other",
}

[lukewilliamboswell]

Note the string interpolation here should be ${Num.to_str(x)} or maybe ${x.to_str()}

[JRI98]

I copied it from an old example. Good catch.