Java to Kotlin converter: correct code generated for accessing nullable variables

j2k/tests/testData/ast/nullability/NullableVariableDotAccess.java

@@ -0,0 +1,6 @@
+//method
+int foo(String s, boolean b) {
+  if (s == null) System.out.println("null")
+  if (b) return s.length();
+  return 10;
+}