well redesigned class vals and vars, classScope introduced for class functions

lynglib/src/commonMain/kotlin/net/sergeych/lyng/Compiler.kt

@@ -1655,7 +1655,6 @@ class Compiler(
             // return
             currentInitScope += statement {
                 val initValue = initialExpression?.execute(this)?.byValueCopy() ?: ObjNull
-                // todo: get rid of classfield!
                 (thisObj as ObjClass).createClassField(name, initValue, isMutable, visibility, pos)
                 addItem(name, isMutable, initValue, visibility, ObjRecord.Type.Field)
                 ObjVoid

lynglib/src/commonMain/kotlin/net/sergeych/lyng/CompilerContext.kt

@@ -44,6 +44,7 @@ class CompilerContext(val tokens: List<Token>) {
             if (type != it.type) throw ScriptError(it.pos, message)
         }
 
+    @Suppress("unused")
     fun syntaxError(at: Pos, message: String = "Syntax error"): Nothing {
         throw ScriptError(at, message)
     }

lynglib/src/commonMain/kotlin/net/sergeych/lyng/obj/ObjInstance.kt

@@ -81,7 +81,7 @@ class ObjInstance(override val objClass: ObjClass) : Obj() {
                 scope.raiseIllegalArgument("serialized vars has bigger size than instance vars")
             println("deser state vars $vars")
             for ((i, v) in vars.withIndex()) {
-                localVars[i].value = vars[i]
+                localVars[i].value = v
             }
         }
     }