compiler/testData/codegen/properties/fieldSetterPlusEq.kt - third_party/github/JetBrains/kotlin - Git at Google

 var collector: String = ""
   set(it) { field += it }

 fun append(s: String): String {
   collector = s;
   return collector;
 }
	var collector: String = ""
	set(it) { field += it }

	fun append(s: String): String {
	collector = s;
	return collector;
	}