[IR, Native] Add compiler flag for partial linkage mode

^KT-50775

kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt

@@ -386,6 +386,7 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
                 putIfNotNull(RUNTIME_LOGS, arguments.runtimeLogs)
                 putIfNotNull(BUNDLE_ID, parseBundleId(arguments, outputKind, configuration))
                 put(MEANINGFUL_BRIDGE_NAMES, arguments.meaningfulBridgeNames)
+                put(PARTIAL_LINKAGE, arguments.partialLinkage)
             }
         }
     }

kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt

@@ -364,6 +364,9 @@ class K2NativeCompilerArguments : CommonCompilerArguments() {
     @Argument(value = "-Xlazy-ir-for-caches", valueDescription = "{disable|enable}", description = "Use lazy IR for cached libraries")
     var lazyIrForCaches: String? = null
 
+    @Argument(value = "-Xpartial-linkage", description = "Allow unlinked symbols")
+    var partialLinkage: Boolean = false
+
     override fun configureAnalysisFlags(collector: MessageCollector, languageVersion: LanguageVersion): MutableMap<AnalysisFlag<*>, Any> =
             super.configureAnalysisFlags(collector, languageVersion).also {
                 val optInList = it[AnalysisFlags.optIn] as List<*>

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

@@ -6,8 +6,8 @@
 package org.jetbrains.kotlin.backend.konan
 
 import org.jetbrains.kotlin.config.CompilerConfigurationKey
-import org.jetbrains.kotlin.serialization.js.ModuleKind
 import org.jetbrains.kotlin.konan.target.CompilerOutputKind
+import org.jetbrains.kotlin.serialization.js.ModuleKind
 
 class KonanConfigKeys {
     companion object {
@@ -171,6 +171,7 @@ class KonanConfigKeys {
         val RUNTIME_LOGS: CompilerConfigurationKey<String> = CompilerConfigurationKey.create("enable runtime logging")
         val LAZY_IR_FOR_CACHES: CompilerConfigurationKey<Boolean> = CompilerConfigurationKey.create("use lazy IR for cached libraries")
         val MEANINGFUL_BRIDGE_NAMES: CompilerConfigurationKey<Boolean> = CompilerConfigurationKey.create("enable meaningful bridge names")
+        val PARTIAL_LINKAGE: CompilerConfigurationKey<Boolean> = CompilerConfigurationKey.create("allows some symbols in klibs be missed")
     }
 }
 

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

@@ -39,10 +39,12 @@ internal fun Context.psiToIr(
         useLinkerWhenProducingLibrary: Boolean
 ) {
     // Translate AST to high level IR.
-    val expectActualLinker = config.configuration.get(CommonConfigurationKeys.EXPECT_ACTUAL_LINKER)?:false
-    val messageLogger = config.configuration.get(IrMessageLogger.IR_MESSAGE_LOGGER) ?: IrMessageLogger.None
+    val expectActualLinker = config.configuration[CommonConfigurationKeys.EXPECT_ACTUAL_LINKER] ?: false
+    val messageLogger = config.configuration[IrMessageLogger.IR_MESSAGE_LOGGER] ?: IrMessageLogger.None
 
-    val translator = Psi2IrTranslator(config.configuration.languageVersionSettings, Psi2IrConfiguration(false))
+    val allowUnboundSymbols = config.configuration[KonanConfigKeys.PARTIAL_LINKAGE] ?: false
+
+    val translator = Psi2IrTranslator(config.configuration.languageVersionSettings, Psi2IrConfiguration(ignoreErrors = false, allowUnboundSymbols = allowUnboundSymbols))
     val generatorContext = translator.createGeneratorContext(moduleDescriptor, bindingContext, symbolTable)
 
     val pluginExtensions = IrGenerationExtension.getInstances(config.project)
@@ -105,19 +107,20 @@ internal fun Context.psiToIr(
                 ).associateWith { friendModules }
 
         KonanIrLinker(
-                moduleDescriptor,
-                translationContext,
-                messageLogger,
-                generatorContext.irBuiltIns,
-                symbolTable,
-                friendModulesMap,
-                forwardDeclarationsModuleDescriptor,
-                stubGenerator,
-                irProviderForCEnumsAndCStructs,
-                exportedDependencies,
-                config.cachedLibraries,
-                config.lazyIrForCaches,
-                config.userVisibleIrModulesSupport
+                currentModule = moduleDescriptor,
+                translationPluginContext = translationContext,
+                messageLogger = messageLogger,
+                builtIns = generatorContext.irBuiltIns,
+                symbolTable = symbolTable,
+                friendModules = friendModulesMap,
+                forwardModuleDescriptor = forwardDeclarationsModuleDescriptor,
+                stubGenerator = stubGenerator,
+                cenumsProvider = irProviderForCEnumsAndCStructs,
+                exportedDependencies = exportedDependencies,
+                cachedLibraries = config.cachedLibraries,
+                lazyIrForCaches = config.lazyIrForCaches,
+                userVisibleIrModulesSupport = config.userVisibleIrModulesSupport,
+                allowUnboundSymbols = allowUnboundSymbols
         ).also { linker ->
 
             // context.config.librariesWithDependencies could change at each iteration.

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

@@ -322,7 +322,8 @@ internal class KonanIrLinker(
         private val cachedLibraries: CachedLibraries,
         private val lazyIrForCaches: Boolean,
         override val userVisibleIrModulesSupport: UserVisibleIrModulesSupport,
-) : KotlinIrLinker(currentModule, messageLogger, builtIns, symbolTable, exportedDependencies) {
+        allowUnboundSymbols: Boolean
+) : KotlinIrLinker(currentModule, messageLogger, builtIns, symbolTable, exportedDependencies, allowUnboundSymbols) {
 
     companion object {
         private val C_NAMES_NAME = Name.identifier("cnames")