Refine diagnostic about type arguments for an outer class

#KT-11263 Fixed

compiler/testData/diagnostics/tests/generics/innerClasses/outerArgumentsRequired.kt

@@ -0,0 +1,23 @@
+import A.B.D
+import A.B.C
+import A.B.D.Innermost
+
+class A<T> {
+    inner class B<F> {
+        inner class C<E>
+        inner class D {
+            inner class Innermost<X>
+        }
+    }
+
+    class Nested {
+        val x: <!OUTER_CLASS_ARGUMENTS_REQUIRED(class 'A')!>B<!><String>? = null
+        val y: <!OUTER_CLASS_ARGUMENTS_REQUIRED(class 'A')!>B<!><String>.C<String>? = null
+        val z: <!OUTER_CLASS_ARGUMENTS_REQUIRED(class 'A')!>B<!><String>.D? = null
+
+        val c: <!OUTER_CLASS_ARGUMENTS_REQUIRED(class 'B')!>C<!><Int>? = null
+        val d: <!OUTER_CLASS_ARGUMENTS_REQUIRED(class 'B')!>D<!>? = null
+
+        val innerMost: <!OUTER_CLASS_ARGUMENTS_REQUIRED(class 'B')!>Innermost<!><String>? = null
+    }
+}