[minor] fixes after review

libraries/scripting/common/src/kotlin/script/experimental/api/errorHandling.kt

@@ -167,5 +167,5 @@ fun <R> ResultWithDiagnostics<R>.resultOrNull(): R? = when (this) {
  */
 inline fun <R> ResultWithDiagnostics<R>.resultOr(body: (ResultWithDiagnostics.Failure) -> Nothing): R = when (this) {
     is ResultWithDiagnostics.Success<R> -> value
-    else -> body(this as ResultWithDiagnostics.Failure)
+    is ResultWithDiagnostics.Failure -> body(this)
 }

libraries/scripting/common/src/kotlin/script/experimental/api/replData.kt

@@ -8,7 +8,7 @@ package kotlin.script.experimental.api
 import java.io.Serializable
 
 const val REPL_SNIPPET_FIRST_NO = 1
-const val REPL_Snippet_FIRST_GEN = 1
+const val REPL_SNIPPET_FIRST_GEN = 1
 
 interface ReplSnippetId : Serializable, Comparable<ReplSnippetId> {
     val no: Int

libraries/scripting/jvm-host/src/kotlin/script/experimental/jvmhost/jsr223/KotlinJsr223InvocableScriptEngine.kt

@@ -28,7 +28,7 @@ interface KotlinJsr223InvocableScriptEngine : Invocable {
         sequenceOf(requestedReceiver) + backwardInstancesHistory.filterNot { it == requestedReceiver }
 
     override fun invokeFunction(name: String?, vararg args: Any?): Any? {
-        if (name == null) throw java.lang.NullPointerException("function name cannot be null")
+        if (name == null) throw AssertionError("function name cannot be null")
         return invokeImpl(backwardInstancesHistory, name, args)
     }