Java to Kotlin converter: no more 2 conversion modes for each test, just a few tests to test non-standard settings

j2k/tests/testData/ast/methodCallExpression/genericMethod.kt

@@ -1,13 +1,13 @@
 package demo
 
-open class Map() {
-    open fun <K, V> put(k: K?, v: V?) {
+class Map() {
+    fun <K, V> put(k: K, v: V) {
     }
 }
 
-open class U() {
-    open fun test() {
-        var m: Map? = Map()
-        m?.put<String?, Int>("10", 10)
+class U() {
+    fun test() {
+        val m = Map()
+        m.put<String, Int>("10", 10)
     }
 }