Add tests for obsolete issues

#KT-21085 Obsolete
 #KT-13846 Obsolete

compiler/testData/codegen/box/delegatedProperty/local/kt21085.kt

@@ -0,0 +1,15 @@
+// IGNORE_BACKEND: JVM_IR
+
+class Delegate(val value: String) {
+    operator fun getValue(thisRef: Any?, kProperty: Any?) = value
+}
+
+fun box(): String {
+    val x by Delegate("O")
+
+    class Local(val y: String) {
+        val fn = { x + y }
+    }
+
+    return Local("K").fn()
+}