preserve comments: replace switch with if (IDEA-113518)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/convertSwitchToIf/afterString.java

@@ -1,7 +1,15 @@
 // "Replace 'switch' with 'if'" "true"
 class X {
   public void doSomething( String value) {
-      if ("case1".equals(value)) {
+      //comment1
+      //comment3
+      //comment4
+      //comment5
+      //comment6
+      //comment7
+      //comment8
+      if ("case1".equals(value)) {//comment2
+
       } else if ("case2".equals(value)) {
       } else {
       }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/convertSwitchToIf/beforeString.java

@@ -2,12 +2,13 @@
 class X {
   public void doSomething( String value) {
     switch<caret> ( value ) {
-      case "case1":
-        break;
-      case "case2":
-        break;
-      default:
-        break;
-    }
+      case "case1"://comment1
+        //comment2
+        break;//comment3
+      case "case2"://comment4
+        break;//comment5
+      default://comment6
+        break;//comment7
+    }//comment8
   }
 }