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/library1/a1.kt

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

compiler/testData/compileKotlinAgainstCustomBinaries/missingDependencyConflictingLibraries/library1/b1.kt

@@ -2,8 +2,11 @@ package b
 
 import a.A
 import a.AA
+import a.AAA
 
 interface B1 {
     fun produceA(): A<String>.Inner<Int, Unit>
     fun produceAA(): AA<Int>.Inner<Unit, String>
+    fun <T> produceAGeneric(t: T): A<String>.Inner<Int, Unit>
+    fun produceAAA(): AAA<String>.Inner<Int>.InnerInner<Unit>
 }