Inheritors in smart completion work for the classes in the same file too

idea/testData/completion/smart/Inheritors3.kt

@@ -0,0 +1,31 @@
+trait T
+
+open class A : T
+
+class B : A()
+
+fun foo(): T {
+    open class Local1 : T
+
+    class Local2 : Local1()
+
+    return <caret>
+}
+
+fun x() {
+    /*TODO*/
+    /*class Local3 : T*/
+}
+
+open class C : T
+
+class D : C()
+
+
+// EXIST: A
+// EXIST: B
+// EXIST: Local1
+// EXIST: Local2
+// ABSENT: Local3
+// EXIST: C
+// EXIST: D

idea/testData/completion/smart/ObjectsFromType.kt

@@ -10,5 +10,8 @@ fun foo(): T {
     return <caret>
 }
 
-// EXIST: { lookupString:"Null", itemText:"T.Null", tailText:" (p)", typeText:"T" }
+// EXIST: { lookupString:"Null", itemText:"Null", tailText:" (p.T)" }
+// EXIST: foo
+// EXIST: object
 // ABSENT: Other
+// NUMBER: 3