[minor] fix compiler warnings in scripting modules

libraries/scripting/common/src/kotlin/script/experimental/impl/runSuspend.kt

@@ -34,7 +34,7 @@ private class InternalScriptingRunSuspend<T> : Continuation<T> {
 
     fun await(): T = synchronized(this) {
         while (true) {
-            when (val result: Result<T>? = this.result) {
+            when (this.result) {
                 null -> @Suppress("PLATFORM_CLASS_MAPPED_TO_KOTLIN") (this as Object).wait()
                 else -> break
             }

libraries/scripting/dependencies-maven/src/kotlin/script/experimental/dependencies/maven/MavenDependenciesResolver.kt

@@ -98,6 +98,7 @@ class MavenDependenciesResolver : ExternalDependenciesResolver {
              */
             setAuthentication(
                 AuthenticationBuilder().apply {
+                    @Suppress("DEPRECATION")
                     val mavenRepo = repositoryCoordinates as? MavenRepositoryCoordinates
                     val username = options.username ?: mavenRepo?.username
                     val password = options.password ?: mavenRepo?.password

libraries/scripting/dependencies-maven/src/kotlin/script/experimental/dependencies/maven/impl/aether.kt

@@ -207,7 +207,7 @@ internal class AetherResolveSession(
         if (mirrors != null) {
             for (mirror in mirrors) {
                 selector.add(
-                    mirror.id, mirror.url, mirror.layout, false,
+                    mirror.id, mirror.url, mirror.layout, false, false,
                     mirror.mirrorOf, mirror.mirrorOfLayouts
                 )
             }

libraries/scripting/jvm-host-test/test/kotlin/script/experimental/jvmhost/test/CachingTest.kt

@@ -301,7 +301,7 @@ private fun File.readCompiledScript(): CompiledScript {
 private fun ByteArray.toHexString(): String = joinToString("", transform = { "%02x".format(it) })
 
 private fun Class<*>.supertypes(): MutableList<Class<*>> = when {
-    superclass == null -> interfaces.toMutableList() ?: mutableListOf()
+    superclass == null -> interfaces.toMutableList()
     interfaces.isEmpty() -> mutableListOf(superclass)
     else -> ArrayList<Class<*>>(interfaces.size + 1).apply {
         interfaces.toCollection(this@apply)