<Resolve the ambiguity of kotlin's reference to ov...

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Resolve the ambiguity of kotlin's reference to overloaded functions or fields
In kotlin, reference fields or overloaded functions may be ambiguous. For example:
object a {
val a = 1
fun a(){}
fun a(p: Int) = p
}

fun main() {
a::a // error
}

Anyway, specifying the type explicitly can eliminate this ambiguity, like:
fun main() {
val t: kotlin.reflect.KProperty = a::a
val t1: a.()->Unit = a::a
val t2: a.(Int)->Int = a::a
}

However, this behavior is very complex, and local variable are also defined. At the same time, the return value type of...