new Lambda Expression
fun MetadataProvider.newLambdaExpression(code: String? = null, rawNode: Any? = null): LambdaExpression
Creates a new LambdaExpression. The MetadataProvider receiver will be used to fill different meta-data using Node.applyMetadata. Calling this extension function outside of Kotlin requires an appropriate MetadataProvider, such as a LanguageFrontend as an additional prepended argument.