JVM_IR fix override equivalence check for collection stub generation

KT-42043 KT-42033

compiler/testData/codegen/bytecodeListing/collectionStubs/noStubsInIterable.kt

@@ -0,0 +1,8 @@
+class MyIterable<E> : Iterable<E> {
+    class MyIterator<E> : Iterator<E> {
+        override fun hasNext(): Boolean = TODO()
+        override fun next(): E = TODO()
+    }
+
+    override fun iterator(): Iterator<E> = TODO()
+}