# Evaluate the 'then' expression if the condition is true.
if (true) {
    print("good"); # expect: good
}
if (false) {
    print("bad");
}
# Allow block body.
if (true) { print("block"); } # expect: block

# Assignment in if condition.
var a = false;
if a = true {
    print(a); # expect: true
}