Update Kotlin version and remove TODO about compiler bug (seems to be fixed in 2.1.0)

Author: kyay10

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 arrow = "2.0.0-alpha.1"
 kotest = "5.8.1"
-kotlin = "2.0.0"
+kotlin = "2.1.0"
 kotlinxCoroutinesCore = "1.8.0"
 nexus-publish = "2.0.0-rc-1"
 turbine = "1.1.0"

library/src/commonTest/kotlin/effekt/casestudies/NaturalisticDsl.kt

@@ -71,7 +71,6 @@ suspend fun Quantification.every(who: Predicate) = quantify(who)
 
 suspend fun s2() = scoped { John said { every(Woman) loves me() } }
 
-//TODO: weird compiler bug. Removing suspend here still compiles s2, but ends up with null continuation
 suspend fun scoped(s: suspend Quantification.() -> Sentence): Sentence {
   data class Data(var i: Int)
   return handleStateful(Data(0), Data::copy) {

library/src/commonTest/kotlin/utils.kt

@@ -19,5 +19,5 @@ inline fun runTestCC(
 }
 
 inline fun <Error, R> HandlerPrompt<R>.Raise(crossinline transform: (Error) -> R): Raise<Error> = object : Raise<Error> {
-  override fun raise(error: Error): Nothing = discard { transform(error) }
+  override fun raise(r: Error): Nothing = discard { transform(r) }
 }