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

#KT-5362 Fixed
#KT-8814 Fixed

compiler/testData/diagnostics/tests/inner/outerGenericParam.kt

@@ -1,6 +1,6 @@
 class Outer<T> {
     class Nested {
-        fun foo(t: <!INACCESSIBLE_OUTER_CLASS_EXPRESSION!>T<!>) = t
+        fun foo(t: <!UNRESOLVED_REFERENCE!>T<!>) = <!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>t<!>
     }
     
     class Nested2<T> {
@@ -10,4 +10,4 @@ class Outer<T> {
     inner class Inner {
         fun foo(t: T) = t
     }
-}
+}