Change outer scope for nested class and object -- removed implicit outer class receiver.

#KT-5362 Fixed
#KT-8814 Fixed

idea/testData/quickfix/modifiers/addInnerModifier.kt.todo

@@ -0,0 +1,8 @@
+// "Add 'inner' modifier" "true"
+class A {
+    fun foo() = 42
+
+    class B {
+        fun bar() = <caret>foo()
+    }
+}