Fix construction of Mock classes in case of generic inner types

This fixes testMissingDependencyConflictingLibraries for NI and also
 fixes changed test for OI as well

compiler/testData/compileKotlinAgainstCustomBinaries/missingDependencyConflictingLibraries/library2/a2.kt

@@ -7,3 +7,9 @@ class A<T, U: CharSequence, V> {
 class AA<T, U> {
     inner class Inner<V>
 }
+
+class AAA<T> {
+    inner class Inner<K> {
+        inner class InnerInner<S>
+    }
+}

compiler/testData/compileKotlinAgainstCustomBinaries/missingDependencyConflictingLibraries/library2/b2.kt

@@ -2,8 +2,10 @@ package b
 
 import a.A
 import a.AA
+import a.AAA
 
 interface B2 {
     fun consumeA(a: A<Int, String, Double>.Inner<B2>)
     fun consumeAA(a: AA<Int, Unit>.Inner<String>)
+    fun consumeAAA(a: AAA<String>.Inner<Int>.InnerInner<Unit>)
 }