[Commonizer] Drop useless "allowPrivate" flag in VisibilityCommonizer

native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/core/TypeAliasCommonizer.kt

@@ -43,7 +43,7 @@ private class TypeAliasLiftingUpCommonizer(cache: CirClassifiersCache) : Abstrac
     private val typeParameters = TypeParameterListCommonizer(cache)
     private val underlyingType = TypeCommonizer(cache)
     private lateinit var expandedType: CirSimpleType
-    private val visibility = VisibilityCommonizer.lowering(allowPrivate = false)
+    private val visibility = VisibilityCommonizer.lowering()
 
     override fun commonizationResult(): CirTypeAlias = CirTypeAliasFactory.create(
         annotations = emptyList(),

native/commonizer/src/org/jetbrains/kotlin/descriptors/commonizer/core/VisibilityCommonizer.kt

@@ -10,10 +10,10 @@ import org.jetbrains.kotlin.descriptors.Visibility
 import org.jetbrains.kotlin.descriptors.commonizer.cir.CirFunctionOrProperty
 import org.jetbrains.kotlin.descriptors.commonizer.cir.CirHasVisibility
 
-abstract class VisibilityCommonizer(private val allowPrivate: Boolean) : Commonizer<CirHasVisibility, Visibility> {
+abstract class VisibilityCommonizer : Commonizer<CirHasVisibility, Visibility> {
 
     companion object {
-        fun lowering(allowPrivate: Boolean = false): VisibilityCommonizer = LoweringVisibilityCommonizer(allowPrivate)
+        fun lowering(): VisibilityCommonizer = LoweringVisibilityCommonizer()
         fun equalizing(): VisibilityCommonizer = EqualizingVisibilityCommonizer()
     }
 
@@ -27,7 +27,7 @@ abstract class VisibilityCommonizer(private val allowPrivate: Boolean) : Commoni
             return false
 
         val nextVisibility = next.visibility
-        if (!allowPrivate && Visibilities.isPrivate(nextVisibility) || !canBeCommonized(next)) {
+        if (Visibilities.isPrivate(nextVisibility) || !canBeCommonized(next)) {
             temp = Visibilities.UNKNOWN
             return false
         }
@@ -42,10 +42,10 @@ abstract class VisibilityCommonizer(private val allowPrivate: Boolean) : Commoni
 }
 
 /**
- * Choose the lowest possible visibility ignoring private for all given member descriptors, if possible.
+ * Choose the lowest possible visibility ignoring private for all given member descriptors.
  * If at least one member descriptor is virtual, then the commonizer succeeds only if all visibilities are equal.
  */
-private class LoweringVisibilityCommonizer(allowPrivate: Boolean) : VisibilityCommonizer(allowPrivate) {
+private class LoweringVisibilityCommonizer : VisibilityCommonizer() {
     private var atLeastOneVirtualCallableMet = false
     private var atLeastTwoVisibilitiesMet = false
 
@@ -73,7 +73,7 @@ private class LoweringVisibilityCommonizer(allowPrivate: Boolean) : VisibilityCo
 /**
  * Make sure that visibilities of all member descriptors are equal and are not private according to [Visibilities.isPrivate].
  */
-private class EqualizingVisibilityCommonizer : VisibilityCommonizer(false) {
+private class EqualizingVisibilityCommonizer : VisibilityCommonizer() {
     override fun canBeCommonized(next: CirHasVisibility) = true
 
     override fun getNext(current: Visibility, next: Visibility) =

native/commonizer/tests/org/jetbrains/kotlin/descriptors/commonizer/core/LoweringVisibilityCommonizerTest.kt

@@ -16,7 +16,6 @@ import org.jetbrains.kotlin.descriptors.commonizer.cir.impl.unsupported
 import org.junit.Test
 
 abstract class LoweringVisibilityCommonizerTest(
-    private val allowPrivate: Boolean,
     private val areMembersVirtual: Boolean
 ) : AbstractCommonizerTest<CirHasVisibility, Visibility>() {
 
@@ -43,7 +42,7 @@ abstract class LoweringVisibilityCommonizerTest(
         PUBLIC.toMock(), LOCAL.toMock()
     )
 
-    final override fun createCommonizer() = VisibilityCommonizer.lowering(allowPrivate = allowPrivate)
+    final override fun createCommonizer() = VisibilityCommonizer.lowering()
 
     protected fun Visibility.toMock() = object : CirFunctionOrProperty {
         override val annotations get() = unsupported()
@@ -59,39 +58,7 @@ abstract class LoweringVisibilityCommonizerTest(
         override val kind get() = unsupported()
     }
 
-    class PrivateMembers : LoweringVisibilityCommonizerTest(true, false) {
-
-        @Test
-        fun publicAndProtected() = doTestSuccess(
-            expected = PROTECTED,
-            PUBLIC.toMock(), PROTECTED.toMock(), PUBLIC.toMock()
-        )
-
-        @Test
-        fun publicAndInternal() = doTestSuccess(
-            expected = INTERNAL,
-            PUBLIC.toMock(), INTERNAL.toMock(), PUBLIC.toMock()
-        )
-
-        @Test(expected = IllegalCommonizerStateException::class)
-        fun publicAndInternalAndProtected() = doTestFailure(
-            PUBLIC.toMock(), INTERNAL.toMock(), PROTECTED.toMock()
-        )
-
-        @Test
-        fun publicAndInternalAndPrivate() = doTestSuccess(
-            expected = PRIVATE,
-            PUBLIC.toMock(), INTERNAL.toMock(), PRIVATE.toMock()
-        )
-
-        @Test
-        fun privateOnly() = doTestSuccess(
-            expected = PRIVATE,
-            PRIVATE.toMock(), PRIVATE.toMock(), PRIVATE.toMock()
-        )
-    }
-
-    class NonVirtualMembers : LoweringVisibilityCommonizerTest(false, false) {
+    class NonVirtualMembers : LoweringVisibilityCommonizerTest(false) {
 
         @Test
         fun publicAndProtected() = doTestSuccess(
@@ -121,7 +88,7 @@ abstract class LoweringVisibilityCommonizerTest(
         )
     }
 
-    class VirtualMembers : LoweringVisibilityCommonizerTest(false, true) {
+    class VirtualMembers : LoweringVisibilityCommonizerTest(true) {
 
         @Test(expected = IllegalCommonizerStateException::class)
         fun publicAndProtected1() = doTestFailure(