val textReport = parameters.textReportFile.get().asFile
        textReport.parentFile.mkdirs()
        textReport.printWriter(Charsets.UTF_8).use { writer ->
            val versions = versionsDates()
            versionToIncubating.toSortedMap().forEach { (version, incubatingDescriptions) ->
                val releaseDate = versions[version] ?: "unreleased"

	// type of s is string
	// s == a[i]
	g(i, s)
}

var key string
var val interface{}  // element type of m is assignable to val
m := map[string]int{"mon":0, "tue":1, "wed":2, "thu":3, "fri":4, "sat":5, "sun":6}
for key, val = range m {
	h(key, val)
}
// key == last map key encountered in iteration
// val == map[key]

var ch chan Work = producer()
for w := range ch {
	doWork(w)
}

abstract class IncubatingApiReportAggregationWorkAction : WorkAction<IncubatingApiReportAggregationParameter> {
    override fun execute() {
        val byCategory = mutableMapOf<String, ReportNameToProblems>()
        parameters.reports.files.sorted().forEach { file ->
            file.forEachLine(Charsets.UTF_8) {
                val (version, _, problem) = it.split(';')
                byCategory.getOrPut(toCategory(version, file.nameWithoutExtension)) {