Supported cycles during object subgraph freezing

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

@@ -259,7 +259,7 @@ internal class KonanSymbols(context: Context, val symbolTable: SymbolTable): Sym
             context.getInternalFunctions("initInstance").single())
 
     val freeze = symbolTable.referenceSimpleFunction(
-            builtInsPackage("konan", "worker").getContributedFunctions(Name.identifier("freezeAllowCycles"), NoLookupLocation.FROM_BACKEND).single())
+            builtInsPackage("konan", "worker").getContributedFunctions(Name.identifier("freeze"), NoLookupLocation.FROM_BACKEND).single())
 
     val getContinuation = symbolTable.referenceSimpleFunction(
             context.getInternalFunctions("getContinuation").single())

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/Runtime.kt

@@ -42,6 +42,7 @@ class Runtime(bitcodeFile: String) {
     val objHeaderType = getStructType("ObjHeader")
     val objHeaderPtrType = pointerType(objHeaderType)
     val arrayHeaderType = getStructType("ArrayHeader")
+    val containerHeaderType = getStructType("ContainerHeader")
 
     val frameOverlayType = getStructType("FrameOverlay")
 

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/StaticObjects.kt

@@ -32,14 +32,14 @@ import org.jetbrains.kotlin.types.TypeProjection
 import org.jetbrains.kotlin.types.replace
 
 private fun StaticData.objHeader(typeInfo: ConstPointer): Struct {
-    val containerOffsetNegative = 0 // Static object mark.
-    return Struct(runtime.objHeaderType, typeInfo, Int32(containerOffsetNegative))
+    val container = NullPointer(runtime.containerHeaderType) // Static object mark.
+    return Struct(runtime.objHeaderType, typeInfo, container)
 }
 
 private fun StaticData.arrayHeader(typeInfo: ConstPointer, length: Int): Struct {
     assert (length >= 0)
-    val containerOffsetNegative = 0 // Static object mark.
-    return Struct(runtime.arrayHeaderType, typeInfo, Int32(containerOffsetNegative), Int32(length))
+    val container = NullPointer(runtime.containerHeaderType) // Static object mark.
+    return Struct(runtime.arrayHeaderType, typeInfo, container, Int32(length))
 }
 
 internal fun StaticData.createKotlinStringLiteral(value: String): ConstPointer {