Split serialized package fragments metadata (#2051)

extracted/konan.serializer/src/org/jetbrains/kotlin/serialization/konan/KonanClassDataFinder.kt

@@ -18,8 +18,9 @@ class KonanClassDataFinder(
         val nameList = proto.classNameList
 
         val index = nameList.indexOfFirst { nameResolver.getClassId(it) == classId }
-        if (index == -1)
-            error("Could not find serialized class $classId")
+        if (index == -1) {
+            return null
+        }
 
         val foundClass = proto.getClasses(index) ?: error("Could not find data for serialized class $classId")
 

extracted/konan.serializer/src/org/jetbrains/kotlin/serialization/konan/KonanPackageFragment.kt

@@ -19,7 +19,8 @@ class KonanPackageFragment(
         private val library: KonanLibrary,
         private val packageAccessedHandler: PackageAccessedHandler?,
         storageManager: StorageManager,
-        module: ModuleDescriptor
+        module: ModuleDescriptor,
+        partName: String
 ) : DeserializedPackageFragment(fqName, storageManager, module) {
 
     lateinit var components: DeserializationComponents
@@ -31,7 +32,7 @@ class KonanPackageFragment(
     // The proto field is lazy so that we can load only needed
     // packages from the library.
     private val protoForNames: KonanProtoBuf.LinkDataPackageFragment by lazy {
-        parsePackageFragment(library.packageMetadata(fqName.asString()))
+        parsePackageFragment(library.packageMetadata(fqName.asString(), partName))
     }
 
     val proto: KonanProtoBuf.LinkDataPackageFragment

extracted/konan.serializer/src/org/jetbrains/kotlin/serialization/konan/impl/KonanDeserializedPackageFragmentsFactoryImpl.kt

@@ -29,8 +29,12 @@ internal object KonanDeserializedPackageFragmentsFactoryImpl: KonanDeserializedP
             moduleDescriptor: ModuleDescriptor,
             packageAccessedHandler: PackageAccessedHandler?,
             storageManager: StorageManager
-    ) = packageFragmentNames.map {
-        KonanPackageFragment(FqName(it), library, packageAccessedHandler, storageManager, moduleDescriptor)
+    ) = packageFragmentNames.flatMap {
+        val fqName = FqName(it)
+        val parts = library.packageMetadataParts(fqName.asString())
+        parts.map { partName ->
+            KonanPackageFragment(fqName, library, packageAccessedHandler, storageManager, moduleDescriptor, partName)
+        }
     }
 
     override fun createSyntheticPackageFragments(