fix KT-8977 Ignore non-public API changes for packages in incremental compilation

#KT-8977 Fixed

jps-plugin/testData/comparison/classMembersOnlyChanged/packageFacadeDifference/new.kt

@@ -2,10 +2,12 @@ package test
 
 public fun unchangedFun() {}
 
-private fun addedFun(): Int = 10
+public fun addedFun(): Int = 10
 
-private val addedVal: String = "A"
+public val addedVal: String = "A"
 
-private val changedVal: String = ""
+public val changedVal: String = ""
 
-private fun changedFun(arg: String) {}
+internal fun changedFun(arg: String) {}
+
+private fun privateAddedFun() {}

jps-plugin/testData/comparison/classMembersOnlyChanged/packageFacadeDifference/old.kt

@@ -2,10 +2,12 @@ package test
 
 public fun unchangedFun() {}
 
-private fun removedFun(): Int = 10
+public fun removedFun(): Int = 10
 
-private val removedVal: String = "A"
+public val removedVal: String = "A"
 
-private val changedVal: Int = 20
+public val changedVal: Int = 20
 
-private fun changedFun(arg: Int) {}
+internal fun changedFun(arg: Int) {}
+
+private fun privateRemovedFun() {}