preserve comments: invert if in case when else branch become empty

java/java-tests/testData/codeInsight/invertIfCondition/afterEmptyElseWithComments.java

@@ -0,0 +1,10 @@
+// "Invert 'if' condition" "true"
+class A {
+    public void foo() {
+        if (c) {
+        }
+        //c1
+
+        System.out.println();
+    }
+}