extract method object: conditional exit; nullable check should be processed separately ( IDEA-52452 )

java/java-tests/testData/refactoring/extractMethodObject/WithPrivateMethodUsed.java.after

@@ -0,0 +1,15 @@
+public class XXX {
+  void foo() {
+      new InnerClass().invoke();
+  }
+
+    private class InnerClass {
+        public void invoke() {
+            int i = 0 ;
+            bar(i);
+            System.out.println(i);
+        }
+
+        private void bar(int i){}
+    }
+}