Use EnumSet instead of int flag

Author: mstr2

modules/javafx.graphics/src/main/java/com/sun/javafx/scene/LayoutFlags.java

@@ -25,17 +25,7 @@
 package com.sun.javafx.scene;
 
 public enum LayoutFlags {
-    DIRTY_ROOT(1),
-    DIRTY_BRANCH(2),
-    NEEDS_LAYOUT(4);
-
-    LayoutFlags(int value) {
-        this.value = value;
-    }
-
-    private final int value;
-
-    public int getValue() {
-        return value;
-    }
+    DIRTY_ROOT,
+    DIRTY_BRANCH,
+    NEEDS_LAYOUT
 }

modules/javafx.graphics/src/main/java/javafx/scene/Parent.java

@@ -35,6 +35,7 @@
 import javafx.collections.ListChangeListener.Change;
 import javafx.collections.ObservableList;
 import java.util.ArrayList;
+import java.util.EnumSet;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -887,26 +888,26 @@ private final ParentTraversalEngine getTraversalEngine() {
      *                                                                     *
      **********************************************************************/
 
-    private int layoutDirtyBits;
+    private final Set<LayoutFlags> layoutFlags = EnumSet.noneOf(LayoutFlags.class);
 
     boolean isLayoutClean() {
-        return layoutDirtyBits == 0;
+        return layoutFlags.isEmpty();
     }
 
     void setLayoutFlag(LayoutFlags flag) {
         if (needsLayout != null) {
             needsLayout.set(flag == LayoutFlags.NEEDS_LAYOUT);
         }
 
-        layoutDirtyBits |= flag.getValue();
+        layoutFlags.add(flag);
     }
 
     private void clearLayoutFlags() {
-        layoutDirtyBits = 0;
+        layoutFlags.clear();
     }
 
     private boolean isLayoutFlag(LayoutFlags flag) {
-        return (layoutDirtyBits & flag.getValue()) != 0;
+        return layoutFlags.contains(flag);
     }
 
     /**