KT-7472 function of anonymous class is never used

#KT-7472 fixed

idea/testData/inspections/unusedSymbol/function/localMember.kt

@@ -0,0 +1,45 @@
+fun main(args: Array<String>) {
+    val localObject = object {
+        fun f() {
+        }
+
+        val p = 5
+    }
+
+    localObject.f()
+    localObject.p
+
+
+    fun localObject2() = object {
+        fun f() {
+        }
+
+        val p = 5
+    }
+
+    localObject2().f()
+    localObject2().p
+
+
+    val a = object {
+        val b = object {
+            val c = object {
+                val d = 5
+            }
+        }
+    }
+
+    a.b.c.d
+
+
+    class LocalClass {
+        fun f() {
+        }
+
+        val p = 5
+    }
+
+
+    LocalClass().f()
+    LocalClass().p
+}