Minor. Added regression tests for: KT-3927, KT-9522, KT-10036, KT-7440, KT-9682, KT-9808, KT-9517, KT-9810, KT-9345.

compiler/testData/codegen/box/innerNested/kt3927.kt

@@ -0,0 +1,23 @@
+//KT-3927 Inner class cannot be instantiated with child instance of outer class
+
+abstract class Base {
+    inner class Inner {
+        fun o() = "O"
+        fun k() = "K"
+    }
+}
+
+class Child : Base()
+
+fun box(): String {
+    var result = ""
+    result += Child().Inner().o()
+
+    fun Child.f() {
+        result += Inner().k()
+    }
+    Child().f()
+
+    return result
+}
+