Generate kotlinx.warnings main file from kotlin-compiler-nostrip

warningGen.kt

fun main(args: Array<String>): Unit = runBlocking<Unit> {
    val warnings =
            org.jetbrains.kotlin.diagnostics.Errors::class.java.declaredFields
                    .map { it.name to it.get(null) as? DiagnosticFactory<*> }
                    .filter { it.second != null }
                    .filter { it.second?.severity == Severity.WARNING }
                    .map { it.first }
                    .map { """const val $it = "$it" """ }
                    .joinToString("\n")

    println("package kotlinx.warnings")
    println()
    println("object Warnings { ")
    println(warnings.prependIndent("   "))
    println("}")
}