CppEditor: Modernize

modernize-orgad
modernize-return-braced-init-list
modernize-use-auto
modernize-use-default-member-init
modernize-use-equals-default
modernize-use-nullptr
modernize-use-override
modernize-use-using

Change-Id: Ifa862782fb7b56ed3f93d9f98685c3af616797c2
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/cppeditor/cppquickfix.h

@@ -39,7 +39,7 @@ class CPPEDITOR_EXPORT CppQuickFixOperation
 {
 public:
     explicit CppQuickFixOperation(const CppQuickFixInterface &interface, int priority = -1);
-    ~CppQuickFixOperation();
+    ~CppQuickFixOperation() override;
 };
 
 /*!
@@ -60,7 +60,7 @@ class CPPEDITOR_EXPORT CppQuickFixFactory : public QObject
 
 public:
     CppQuickFixFactory();
-    ~CppQuickFixFactory();
+    ~CppQuickFixFactory() override;
 
     using QuickFixOperations = TextEditor::QuickFixOperations;