extend test for code cleanup with changing visibility from private to internal for declarations, which are used outside of their file.

idea/testData/inspections/cleanup/cleanup.kt

@@ -22,6 +22,11 @@ fun foo() {
     oldFun1(oldFun2(10))
 
     oldFun2()
+
+    ff()
+    val xx = valX
+    varX = 50
+    varY = 60
 }
 
 fun unnecessarySafeCall(x: String) {

idea/testData/inspections/cleanup/cleanup.kt.after

@@ -21,6 +21,11 @@ fun foo() {
     bar(bar(10 + 2) + 1)
 
     oldFun2()
+
+    ff()
+    val xx = valX
+    varX = 50
+    varY = 60
 }
 
 fun unnecessarySafeCall(x: String) {

idea/testData/inspections/cleanup/topLevels.kt

@@ -0,0 +1,8 @@
+private fun ff() {}
+
+private val valX = 10
+
+private var varX = 20
+
+var varY = 30
+  private set(value: Int) {}

idea/testData/inspections/cleanup/topLevels.kt.after

@@ -0,0 +1,8 @@
+internal fun ff() {}
+
+internal val valX = 10
+
+internal var varX = 20
+
+var varY = 30
+  internal set(value: Int) {}