PartDesign: [skip ci] do forward declaration if possible to reduce build timw

src/Mod/PartDesign/Gui/TaskDressUpParameters.cpp

@@ -25,6 +25,7 @@
 #include "PreCompiled.h"
 
 #ifndef _PreComp_
+# include <QListWidget>
 # include <QListWidgetItem>
 #endif
 
@@ -158,7 +159,7 @@ void TaskDressUpParameters::doubleClicked(QListWidgetItem* item) {
     // executed when the user selected a new item in the list
     // shows the fillets as they are -> useful to switch out of selection mode
 
-    Q_UNUSED(item);
+    Q_UNUSED(item)
 
     // assure we are not in selection mode
     exitSelectionMode();

src/Mod/PartDesign/Gui/TaskDressUpParameters.h

@@ -27,12 +27,12 @@
 
 #include <Gui/TaskView/TaskView.h>
 #include <Gui/Selection.h>
-#include <QListWidget>
 
 #include "TaskFeatureParameters.h"
 #include "ViewProviderDressUp.h"
 
 class QListWidget;
+class QListWidgetItem;
 
 namespace Part {
     class Feature;