KT-1648 Function0<Tuple0> appears in the result of the Implement abstract members quick fix

#KT-1648 fixed

GitOrigin-RevId: 48f7b51625943d75639b0acb2f32bed94bef7a9e

plugins/kotlin/idea/tests/testData/codeInsight/overrideImplement/functionProperty.kt

@@ -0,0 +1,8 @@
+// From KT-1648
+trait A {
+    val method:() -> Unit?
+}
+
+fun some() : A {
+    return object A {<caret>}
+}