Rename parameters shadowing class members

Parameters with the same name as class members are ripe for introducing
bugs. The fact that the "this->" syntax is optional creates confusion
for maintaining programmers who can only guess at the intention.

src/tabcontrollers/ReviveTabController.cpp

@@ -167,9 +167,9 @@ namespace advsettings {
 		}
 	}
 
-	void ReviveTabController::initStage2(OverlayController * parent, QQuickWindow * widget) {
-		this->parent = parent;
-		this->widget = widget;
+        void ReviveTabController::initStage2(OverlayController * var_parent, QQuickWindow * var_widget) {
+                this->parent = var_parent;
+                this->widget = var_widget;
 	}
 
 	void ReviveTabController::eventLoopTick() {