Test for nullability annotations generalized and generated

compiler/testData/asJava/lightClasses/nullabilityAnnotations/PrivateInClass.kt

@@ -0,0 +1,7 @@
+// PrivateInClass
+
+class PrivateInClass private (s: String?) {
+    private val nn: String = ""
+    private val n: String? = ""
+    private fun bar(a: String, b: String?): String? = null
+}