Smart step into skips methods from subclasses

#KT-11705 Fixed

idea/testData/debugger/tinyApp/src/stepping/custom/smartStepIntoSubClass.kt

@@ -0,0 +1,20 @@
+package smartStepIntoSubClass
+
+fun main(args: Array<String>) {
+    val x: Base = Impl()
+    // SMART_STEP_INTO_BY_INDEX: 1
+    //Breakpoint!
+    x.foo(args.toString())
+}
+
+open class Base {
+    open fun foo(s: String) {
+        val a = 1
+    }
+}
+
+class Impl: Base() {
+    override fun foo(s: String) {
+        val b = 1
+    }
+}