IR: move UniqId to ir.tree module

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/UniqId.kt

@@ -0,0 +1,15 @@
+package org.jetbrains.kotlin.ir.util
+
+// This is an abstract uniqIdIndex any serialized IR declarations gets.
+// It is either isLocal and then just gets and ordinary number within its module.
+// Or is visible across modules and then gets a hash of mangled name as its index.
+
+inline class UniqId(val index: Long) {
+    val isPublic: Boolean get() = (index and (1L shl 63)) != 0L
+    val isLocal: Boolean get() = (index and (1L shl 63)) == 0L
+
+    companion object {
+        val NONE = UniqId(0x7fffffffL)
+    }
+}
+

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/DeclarationTable.kt

@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.declarations.lazy.IrLazyDeclarationBase
 import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
 import org.jetbrains.kotlin.ir.util.KotlinMangler
+import org.jetbrains.kotlin.ir.util.UniqId
 
 class DescriptorTable {
     private val descriptors = mutableMapOf<DeclarationDescriptor, Long>()

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/DeserializeDescriptorReference.kt

@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
 import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
 import org.jetbrains.kotlin.ir.util.KotlinMangler
+import org.jetbrains.kotlin.ir.util.UniqId
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/UniqId.kt

@@ -10,15 +10,6 @@ import org.jetbrains.kotlin.library.metadata.KlibMetadataProtoBuf
 import org.jetbrains.kotlin.protobuf.GeneratedMessageLite
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.*
 
-// This is an abstract uniqIdIndex any serialized IR declarations gets.
-// It is either isLocal and then just gets and ordinary number within its module.
-// Or is visible across modules and then gets a hash of mangled name as its index.
-
-inline class UniqId(val index: Long) {
-    val isPublic: Boolean get() = (index and (1L shl 63)) != 0L
-    val isLocal: Boolean get() = (index and (1L shl 63)) == 0L
-}
-
 fun <T, M : GeneratedMessageLite.ExtendableMessage<M>> M.tryGetExtension(extension: GeneratedMessageLite.GeneratedExtension<M, T>) =
     if (this.hasExtension(extension)) this.getExtension<T>(extension) else null
 

compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/lower/serialization/ir/JsDeclarationTable.kt

@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
 import org.jetbrains.kotlin.ir.declarations.IrTypeParameter
 import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
+import org.jetbrains.kotlin.ir.util.UniqId
 import org.jetbrains.kotlin.ir.util.render
 
 class JsUniqIdClashTracker : UniqIdClashTracker {

compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/lower/serialization/ir/JsIrLinker.kt

@@ -15,6 +15,7 @@ import org.jetbrains.kotlin.descriptors.konan.kotlinLibrary
 import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
 import org.jetbrains.kotlin.ir.util.KotlinMangler
 import org.jetbrains.kotlin.ir.util.SymbolTable
+import org.jetbrains.kotlin.ir.util.UniqId
 import org.jetbrains.kotlin.resolve.descriptorUtil.isPublishedApi
 
 class JsIrLinker(