K/N fix: Built-ins initialization refactoring

- Use language settings from IDELanguageSettingsProvider
- Don't use dependencies of root modules to looks up for K/N stdlib

idea/idea-native/src/org/jetbrains/kotlin/ide/konan/NativePlatformKindResolution.kt

@@ -12,26 +12,29 @@ import com.intellij.openapi.roots.libraries.PersistentLibraryKind
 import com.intellij.openapi.vfs.VfsUtil
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.util.PathUtil
+import org.jetbrains.kotlin.analyzer.getCapability
 import org.jetbrains.kotlin.builtins.DefaultBuiltIns
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.caches.resolve.IdePlatformKindResolution
-import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.context.ProjectContext
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.descriptors.impl.CompositePackageFragmentProvider
 import org.jetbrains.kotlin.descriptors.konan.DeserializedKonanModuleOrigin
 import org.jetbrains.kotlin.ide.konan.analyzer.NativeAnalyzerFacade
+import org.jetbrains.kotlin.idea.caches.project.IdeaModuleInfo
 import org.jetbrains.kotlin.idea.caches.project.LibraryInfo
 import org.jetbrains.kotlin.idea.caches.project.getModuleInfosFromIdeaModel
 import org.jetbrains.kotlin.idea.caches.resolve.PlatformAnalysisSettings
+import org.jetbrains.kotlin.idea.compiler.IDELanguageSettingsProvider
 import org.jetbrains.kotlin.konan.file.File
 import org.jetbrains.kotlin.konan.library.*
 import org.jetbrains.kotlin.konan.util.KonanFactories
-import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.platform.impl.NativeIdePlatformKind
 import org.jetbrains.kotlin.resolve.CompilerDeserializationConfiguration
 import org.jetbrains.kotlin.resolve.ImplicitIntegerCoercion
+import org.jetbrains.kotlin.resolve.TargetPlatform
 import org.jetbrains.kotlin.resolve.konan.platform.KonanPlatform
+import org.jetbrains.kotlin.utils.addToStdlib.firstNotNullResult
 
 class NativePlatformKindResolution : IdePlatformKindResolution {
 
@@ -69,84 +72,62 @@ class NativePlatformKindResolution : IdePlatformKindResolution {
     override val resolverForModuleFactory get() = NativeAnalyzerFacade
 
     override fun createBuiltIns(settings: PlatformAnalysisSettings, projectContext: ProjectContext) =
-        createKotlinNativeBuiltIns(projectContext)
+        createKotlinNativeBuiltIns(settings, projectContext)
 }
 
-private fun createKotlinNativeBuiltIns(projectContext: ProjectContext): KotlinBuiltIns {
+private fun createKotlinNativeBuiltIns(settings: PlatformAnalysisSettings, projectContext: ProjectContext): KotlinBuiltIns {
 
-    // TODO: It depends on a random project's stdlib, propagate the actual project here.
-    fun findStdlib(): Pair<String, LibraryInfo>? {
-        getModuleInfosFromIdeaModel(projectContext.project, KonanPlatform).forEach { module ->
-            module.dependencies().forEach { dependency ->
-                (dependency as? LibraryInfo)?.getLibraryRoots()?.forEach { path ->
-                    if (path.endsWith(KONAN_STDLIB_NAME)) {
-                        return path to dependency
-                    }
-                }
-            }
-        }
-        return null
-    }
+    val project = projectContext.project
+    val storageManager = projectContext.storageManager
 
-    val stdlib: Pair<String, LibraryInfo>? = findStdlib()
+    val stdlibInfo = findNativeStdlib(project) ?: return DefaultBuiltIns.Instance
+    val konanLibrary = stdlibInfo.getCapability(NativeLibraryInfo.NATIVE_LIBRARY_CAPABILITY)!!
 
-    if (stdlib != null) {
+    val builtInsModule = KonanFactories.DefaultDescriptorFactory.createDescriptorAndNewBuiltIns(
+        KotlinBuiltIns.BUILTINS_MODULE_NAME,
+        storageManager,
+        DeserializedKonanModuleOrigin(konanLibrary),
+        stdlibInfo.capabilities
+    )
 
-        val (path, libraryInfo) = stdlib
-        val library = createKonanLibrary(
-            File(path),
-            KOTLIN_NATIVE_CURRENT_ABI_VERSION,
-            metadataReader = CachingIdeMetadataReaderImpl
-        )
+    val languageSettings = IDELanguageSettingsProvider.getLanguageVersionSettings(stdlibInfo, project, settings.isReleaseCoroutines)
+    val deserializationConfiguration = CompilerDeserializationConfiguration(languageSettings)
 
-        val libraryProto = library.moduleHeaderData
+    val libraryProto = konanLibrary.moduleHeaderData
 
-        val moduleName = Name.special(libraryProto.moduleName)
-        val moduleOrigin = DeserializedKonanModuleOrigin(library)
+    val stdlibFragmentProvider = KonanFactories.DefaultPackageFragmentsFactory.createPackageFragmentProvider(
+        konanLibrary,
+        null,
+        libraryProto.packageFragmentNameList,
+        storageManager,
+        builtInsModule,
+        deserializationConfiguration
+    )
 
-        val storageManager = projectContext.storageManager
-        val descriptorFactory = KonanFactories.DefaultDescriptorFactory
-
-        val builtInsModule = descriptorFactory.createDescriptorAndNewBuiltIns(
-            moduleName,
-            storageManager,
-            moduleOrigin,
-            libraryInfo.capabilities
-        )
-
-        val deserializationConfiguration = CompilerDeserializationConfiguration(LanguageVersionSettingsImpl.DEFAULT)
-
-        val provider = KonanFactories.DefaultPackageFragmentsFactory.createPackageFragmentProvider(
-            library,
-            null,
-            libraryProto.packageFragmentNameList,
-            storageManager,
-            builtInsModule,
-            deserializationConfiguration
-        )
-
-
-        builtInsModule.initialize(
-            CompositePackageFragmentProvider(
-                listOf(
-                    provider,
-                    KonanFactories.DefaultPackageFragmentsFactory.createForwardDeclarationHackPackagePartProvider(
-                        storageManager,
-                        builtInsModule
-                    )
+    builtInsModule.initialize(
+        CompositePackageFragmentProvider(
+            listOf(
+                stdlibFragmentProvider,
+                KonanFactories.DefaultPackageFragmentsFactory.createForwardDeclarationHackPackagePartProvider(
+                    storageManager,
+                    builtInsModule
                 )
             )
         )
+    )
 
-        builtInsModule.setDependencies(listOf(builtInsModule))
+    builtInsModule.setDependencies(listOf(builtInsModule))
 
-        return builtInsModule.builtIns
-    }
-
-    return DefaultBuiltIns.Instance
+    return builtInsModule.builtIns
 }
 
-class NativeLibraryInfo(project: Project, library: Library, private val root: File) : LibraryInfo(project, library) {
+// TODO: It depends on a random module's stdlib, propagate the actual module here.
+private fun findNativeStdlib(project: Project): NativeLibraryInfo? = getModuleInfosFromIdeaModel(project, KonanPlatform)
+    .firstNotNullResult { it.asNativeStdlib() }
+
+private fun IdeaModuleInfo.asNativeStdlib(): NativeLibraryInfo? = if ((this as? NativeLibraryInfo)?.isStdlib == true) this else null
+
+class NativeLibraryInfo(project: Project, library: Library, root: File) : LibraryInfo(project, library) {
 
     private val nativeLibrary = createKonanLibrary(
         root,
@@ -154,9 +135,11 @@ class NativeLibraryInfo(project: Project, library: Library, private val root: Fi
         metadataReader = CachingIdeMetadataReaderImpl
     )
 
-    override fun getLibraryRoots(): Collection<String> {
-        return listOf(root.absolutePath)
-    }
+    private val roots = listOf(root.absolutePath)
+
+    val isStdlib by lazy { roots.first().endsWith(KONAN_STDLIB_NAME) }
+
+    override fun getLibraryRoots() = roots
 
     override val capabilities: Map<ModuleDescriptor.Capability<*>, Any?>
         get() = super.capabilities +
@@ -165,7 +148,12 @@ class NativeLibraryInfo(project: Project, library: Library, private val root: Fi
                     NATIVE_LIBRARY_CAPABILITY to nativeLibrary
                 )
 
+    override val platform: TargetPlatform
+        get() = KonanPlatform
+
+    override fun toString() = "Native" + super.toString()
+
     companion object {
         val NATIVE_LIBRARY_CAPABILITY = ModuleDescriptor.Capability<KonanLibrary>("KonanLibrary")
     }
-}
+}