// DO_NOT_CHECK_NON_PSI_SYMBOL_RESTORE
class X<T> {
    inner class Y<T1>
    class Z<T2>

    fun <T3> foo() {
        class U<T4> {
            inner class K<T5>
            class C<T6>
            class X<T> {
                inner class Y<T1>
                class Z<T2>

                fun <T3> foo() {
                    class U<T4> {
                        inner class K<T5>
                        class C<T6>
                    }
                }
            }
        }
    }
}