Test on link stage.

backend.native/tests/codegen/propertyCallableReference/linkTest_lib.kt

@@ -0,0 +1,3 @@
+package a
+
+class A(val x: Int)

backend.native/tests/codegen/propertyCallableReference/linkTest_main.kt

@@ -0,0 +1,9 @@
+import a.A
+
+fun main(args: Array<String>) {
+    val p1 = A::x
+    println(p1.get(A(42)))
+    val a = A(117)
+    val p2 = a::x
+    println(p2.get())
+}