[IR] Partial linkage: unify UnlinkedDeclarationsSupport for JS and Native backends

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/PsiToIr.kt

@@ -7,6 +7,7 @@ import org.jetbrains.kotlin.backend.common.serialization.DescriptorByIdSignature
 import org.jetbrains.kotlin.backend.common.serialization.linkerissues.checkNoUnboundSymbols
 import org.jetbrains.kotlin.backend.common.serialization.mangle.ManglerChecker
 import org.jetbrains.kotlin.backend.common.serialization.mangle.descriptor.Ir2DescriptorManglerAdapter
+import org.jetbrains.kotlin.backend.common.serialization.unlinked.UnlinkedDeclarationsSupportImpl
 import org.jetbrains.kotlin.backend.konan.descriptors.isForwardDeclarationModule
 import org.jetbrains.kotlin.backend.konan.descriptors.isFromInteropLibrary
 import org.jetbrains.kotlin.backend.konan.ir.KonanSymbols
@@ -122,7 +123,7 @@ internal fun Context.psiToIr(
                         config.resolve.includedLibraries.map { it.uniqueName }
                 ).associateWith { friendModules }
 
-        val unlinkedDeclarationsSupport = KonanUnlinkedDeclarationsSupport(generatorContext.irBuiltIns, allowUnboundSymbols)
+        val unlinkedDeclarationsSupport = UnlinkedDeclarationsSupportImpl(generatorContext.irBuiltIns, allowUnboundSymbols)
 
         KonanIrLinker(
                 currentModule = moduleDescriptor,

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanUnlinkedDeclarationsSupport.kt

@@ -1,33 +0,0 @@
-/*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.backend.konan.serialization
-
-import org.jetbrains.kotlin.backend.common.serialization.unlinked.BasicUnlinkedDeclarationsSupport
-import org.jetbrains.kotlin.backend.common.serialization.unlinked.UnlinkedDeclarationsSupport.UnlinkedMarkerTypeHandler
-import org.jetbrains.kotlin.ir.IrBuiltIns
-import org.jetbrains.kotlin.ir.types.IrErrorType
-import org.jetbrains.kotlin.ir.types.IrType
-import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
-
-/**
- * Kotlin/Native backend does not support [IrErrorType].
- * So, let's use a special instance of nullable [kotlin.Any] as a marker-type instead.
- */
-class KonanUnlinkedDeclarationsSupport(
-        override val builtIns: IrBuiltIns,
-        override val allowUnboundSymbols: Boolean
-) : BasicUnlinkedDeclarationsSupport() {
-    override val handler = object : UnlinkedMarkerTypeHandler {
-        override val unlinkedMarkerType = IrSimpleTypeImpl(
-                classifier = builtIns.anyClass,
-                hasQuestionMark = true,
-                arguments = emptyList(),
-                annotations = emptyList()
-        )
-
-        override fun IrType.isUnlinkedMarkerType(): Boolean = this === unlinkedMarkerType
-    }
-}