[PL] Log partial linkage messages at different severity

As specified in -Xpartial-linkage-loglevel CLI argument.

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

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.backend.common.extensions.IrGenerationExtension
 import org.jetbrains.kotlin.backend.common.extensions.IrPluginContext
 import org.jetbrains.kotlin.backend.common.extensions.IrPluginContextImpl
 import org.jetbrains.kotlin.backend.common.linkage.issues.checkNoUnboundSymbols
+import org.jetbrains.kotlin.backend.common.linkage.partial.createPartialLinkageSupportForLinker
 import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideChecker
 import org.jetbrains.kotlin.backend.common.serialization.*
 import org.jetbrains.kotlin.backend.common.serialization.mangle.ManglerChecker
@@ -262,14 +263,12 @@ fun getIrModuleInfoForKlib(
     val typeTranslator = TypeTranslatorImpl(symbolTable, configuration.languageVersionSettings, moduleDescriptor)
     val irBuiltIns = IrBuiltInsOverDescriptors(moduleDescriptor.builtIns, typeTranslator, symbolTable)
 
-    val partialLinkageEnabled = configuration.partialLinkageConfig.isEnabled
-
     val irLinker = JsIrLinker(
         currentModule = null,
         messageLogger = messageLogger,
         builtIns = irBuiltIns,
         symbolTable = symbolTable,
-        partialLinkageEnabled = partialLinkageEnabled,
+        partialLinkageSupport = createPartialLinkageSupportForLinker(configuration.partialLinkageConfig, irBuiltIns, messageLogger),
         translationPluginContext = null,
         icData = null,
         friendModules = friendModules
@@ -322,14 +321,12 @@ fun getIrModuleInfoForSourceFiles(
         JsIrLinker.JsFePluginContext(moduleDescriptor, symbolTable, typeTranslator, irBuiltIns)
     }
 
-    val partialLinkageEnabled = configuration.partialLinkageConfig.isEnabled
-
     val irLinker = JsIrLinker(
         currentModule = psi2IrContext.moduleDescriptor,
         messageLogger = messageLogger,
         builtIns = irBuiltIns,
         symbolTable = symbolTable,
-        partialLinkageEnabled = partialLinkageEnabled,
+        partialLinkageSupport = createPartialLinkageSupportForLinker(configuration.partialLinkageConfig, irBuiltIns, messageLogger),
         translationPluginContext = feContext,
         icData = null,
         friendModules = friendModules,

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

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.ir.backend.js.lower.serialization.ir
 
+import org.jetbrains.kotlin.backend.common.linkage.partial.PartialLinkageSupportForLinker
 import org.jetbrains.kotlin.backend.common.overrides.FakeOverrideBuilder
 import org.jetbrains.kotlin.backend.common.serialization.*
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
@@ -20,7 +21,7 @@ import org.jetbrains.kotlin.library.containsErrorCode
 
 class JsIrLinker(
     private val currentModule: ModuleDescriptor?, messageLogger: IrMessageLogger, builtIns: IrBuiltIns, symbolTable: SymbolTable,
-    partialLinkageEnabled: Boolean,
+    override val partialLinkageSupport: PartialLinkageSupportForLinker,
     override val translationPluginContext: TranslationPluginContext?,
     private val icData: ICData? = null,
     friendModules: Map<String, Collection<String>> = emptyMap(),
@@ -31,7 +32,6 @@ class JsIrLinker(
     builtIns = builtIns,
     symbolTable = symbolTable,
     exportedDependencies = emptyList(),
-    partialLinkageEnabled = partialLinkageEnabled,
     symbolProcessor = { symbol, idSig ->
         if (idSig.isLocal) {
             symbol.privateSignature = IdSignature.CompositeSignature(IdSignature.FileSignature(fileSymbol), idSig)