Generated class is incorrect when data class has a read-only property with custom accessor

[asaudemont]

Sample class that illustrates the error:

@DataClass data class Foo(val x: Int) {
    var y: Int
        get() = x + 1
}

The generated class attempts to read a y property from the JSON object. It then instantiates Foo by including y in the constructor call, which is invalid and results in a compilation error.