Generic extensions of KProperty1 in Kotlin

I have the following code:

import kotlin.reflect.KProperty1


infix fun <T, R> KProperty1<T, R>.eq(value: R) {
    println(this.name + " = $value")
}

infix fun <T, R> KProperty1<T, R>.eq(value: KProperty1<T, R>) {
    println(this.name + " = " + value.name)
}

data class Person(val age: Int, val name: String, val surname: String?)

fun main() {
    Person::age eq 1  // Valid. First function
    Person::name eq "Johan"  // Valid. First function
    Person::name eq "Johan"  // Valid. First function
    Person::name eq Person::name  // Valid. Second function
    Person::age eq 1.2f  // Valid, but it shouldn't be. First function
    Person::age eq Person::name  // Valid, but it shouldn't be. First function
    Person::surname eq null  // Invalid, but it should be. Second function, but it should be first
}

I am trying create extension functions for the KProperty1 class with generics, but my generics are not matching as I'd expect. main() lists some uses of the two functions, with 3 unexpected results at the end and a description of what I should expect.