Custom folding for Ruby (RUBY-7875) and API changes

java/java-tests/testData/codeInsight/folding/CustomFolding.java

@@ -1,12 +1,10 @@
 public class Test {
   <fold text='My private fields'>// <editor-fold desc="My private fields">
-
   private int x;
   private int y;
   // </editor-fold></fold>
 
   <fold text='My methods'>// <editor-fold desc="My methods">
-
   private void doSomething() <fold text='{...}'>{
     StringBuilder s = new StringBuilder();
     <fold text='My code'>// <editor-fold desc="My code">