Bump kotlin to v1.9.20 (#362)

* Bump kotlin to v1.9.20

* Fix compiler warnings

* Try again at fixing expect-actual warning

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Erik Christensen <40830816+erikc5000@users.noreply.github.com>

buildSrc/src/main/kotlin/base-convention.gradle.kts

@@ -4,21 +4,28 @@ import org.gradle.api.tasks.testing.AbstractTestTask
 import org.gradle.api.tasks.testing.logging.TestExceptionFormat
 import org.gradle.api.tasks.testing.logging.TestLogEvent
 import org.gradle.kotlin.dsl.withType
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompilationTask
 
 tasks.withType<JavaCompile>().configureEach {
     sourceCompatibility = JavaVersion.VERSION_11.toString()
     targetCompatibility = JavaVersion.VERSION_11.toString()
 }
 
-tasks.withType<KotlinCompile>().configureEach {
+tasks.withType<KotlinJvmCompile>().configureEach {
     compilerOptions {
-        jvmTarget.set(JvmTarget.JVM_11)
+        jvmTarget = JvmTarget.JVM_11
     }
 }
 
-tasks.withType(AbstractTestTask::class).configureEach {
+tasks.withType<KotlinCompilationTask<*>>().configureEach {
+    compilerOptions {
+        freeCompilerArgs.add("-Xexpect-actual-classes")
+    }
+}
+
+tasks.withType<AbstractTestTask>().configureEach {
     testLogging {
         events = setOf(TestLogEvent.FAILED)
         exceptionFormat = TestExceptionFormat.FULL

gradle.properties

@@ -15,6 +15,7 @@ releaseRepositoryUrl=https://oss.sonatype.org/service/local/staging/deploy/maven
 
 kotlin.code.style=official
 kotlin.mpp.stability.nowarn=true
+kotlin.mpp.applyDefaultHierarchyTemplate=false
 
 android.useAndroidX=true
 

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-kotlin = "1.9.10"
+kotlin = "1.9.20"
 dokka = "1.9.10"
 serialization = "1.6.0"
 atomicfu = "0.22.0"