AppKit: Fix missing declarations and DOM guards in CPTableView and CPOutlineView

* CPTableView.j: Add forward @class declaration for CPTableView preceding _CPTableRowView.

* CPOutlineView.j:
  - Import CPCompatibility.j and declare the global document reference.
  - Replace partial DOM guards in -[CPDisclosureButton drawRect:] with an early return.

AppKit/CPOutlineView.j

@@ -21,12 +21,14 @@
  */
 
 @import "CPButton.j"
+@import "CPCompatibility.j"
 @import "CPTableColumn.j"
 @import "CPTableView.j"
 @import "CPViewAnimation.j"
 @import "CPTreeNode.j"
 
 @global CPApp
+@global document
 
 CPOutlineViewColumnDidMoveNotification          = @"CPOutlineViewColumnDidMoveNotification";
 CPOutlineViewColumnDidResizeNotification        = @"CPOutlineViewColumnDidResizeNotification";
@@ -2763,12 +2765,15 @@ function SHOULD_SELECT_ITEM(anOutlineView, anItem)
 
 - (void)drawRect:(CGRect)aRect
 {
+    /*
+        Every statement below works on the arrow's DOM element, which exists only where a DOM
+        is available.
+    */
+    if (!CPDOMAvailable)
+        return;
 
-    if (CPDOMAvailable)
-    {
-        if (_arrowElement && _arrowElement.parentNode !== self._DOMElement)
-            self._DOMElement.appendChild(_arrowElement);
-    }
+    if (_arrowElement && _arrowElement.parentNode !== self._DOMElement)
+        self._DOMElement.appendChild(_arrowElement);
 
     // If I am NOT the clone, I must check if my row is animating.
     // If it is animating, the clone is drawing on top of me, so I should be invisible.
@@ -2780,18 +2785,14 @@ function SHOULD_SELECT_ITEM(anOutlineView, anItem)
             var row = [outlineView rowForView:self];
             if (row !== CPNotFound && [outlineView _isRowAnimatingDisclosure:row])
             {
-
-                if (CPDOMAvailable)
-                {
-                    _arrowElement.style.display = "none";
-                }
+                _arrowElement.style.display = "none";
                 return; // Suppress the real button
             }
         }
     }
 
-        _arrowElement.style.display = "block";
-    
+    _arrowElement.style.display = "block";
+
     var isSelected = [self hasThemeState:CPThemeStateSelected],
         isHighlighted = [self hasThemeState:CPThemeStateHighlighted],
         isKeyWindow = [self hasThemeState:CPThemeStateKeyWindow],
@@ -2833,10 +2834,7 @@ function SHOULD_SELECT_ITEM(anOutlineView, anItem)
         var svgString = '<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M7 10L12 15L17 10H7Z" fill="' + colorCSS + '"/></svg>';
         var b64 = window.btoa(svgString);
 
-        if (CPDOMAvailable)
-        {
-            _arrowElement.style.backgroundImage = "url('data:image/svg+xml;charset=utf-8;base64," + b64 + "')";
-        }
+        _arrowElement.style.backgroundImage = "url('data:image/svg+xml;charset=utf-8;base64," + b64 + "')";
     }
 }
 

AppKit/CPTableView.j

@@ -40,6 +40,7 @@
 @class CPClipView
 @class CPUserDefaults
 @class CPTableHeaderView
+@class CPTableView
 @class _CPTableColumnHeaderView
 @class CPClipView
 @class CPButton