Call getMethod/getDeclaredMethod depending on visibility

compiler/testData/codegen/boxWithStdlib/reflection/properties/privateToThisAccessors.kt

@@ -0,0 +1,16 @@
+import kotlin.reflect.jvm.*
+
+class K<in T : String> {
+    private var t: T
+        get() = "OK" as T
+        set(value) {}
+
+    fun run(): String {
+        val p = ::t
+        p.accessible = true
+        p.set(this, "" as T)
+        return p.get(this)
+    }
+}
+
+fun box() = K<String>().run()