[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/generics/innerClasses/implicitArguments/secondLevelDepth.fir.kt

@@ -0,0 +1,18 @@
+// !CHECK_TYPE
+open class Outer<E> {
+    inner open class Inner<F> {
+        inner class Inner2<D> {
+
+        }
+    }
+}
+
+class DerivedOuter : Outer<String>() {
+    inner class DerivedInner : Inner<Int>() {
+        fun foo(): Inner2<Char> = null!!
+    }
+}
+
+fun foo() {
+    DerivedOuter().DerivedInner().foo() checkType { <!UNRESOLVED_REFERENCE!>_<!><Outer<String>.Inner<Int>.Inner2<Char>>() }
+}