exit status: 1 with stderr:
<stdin>:2:3: error: missing argument for parameter 'x' in call f("", 42.0) ^ x: <#String#>, <stdin>:1:6: note: 'f(x:_:_:)' declared here func f(x: String, _ aa: Int = 0, _ bb: Double) {} ^ <stdin>:2:3: error: cannot convert value of type 'String' to expected argument type 'Int' f("", 42.0) ^