Locator: Fix warning in directory filter

Fix a warning about member variables being initialized in the wrong
order.

Change-Id: I55f5b2725fc9ac859249649dc21fbcc8fef4b0f3
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/coreplugin/locator/directoryfilter.cpp

@@ -36,8 +36,7 @@ using namespace Core;
 using namespace Core::Internal;
 
 DirectoryFilter::DirectoryFilter(Id id)
-    : m_dialog(nullptr),
-      m_filters({"*.h", "*.cpp", "*.ui", "*.qrc"}),
+    : m_filters({"*.h", "*.cpp", "*.ui", "*.qrc"}),
       m_exclusionFilters({"*/.git/*", "*/.cvs/*", "*/.svn/*"})
 {
     setId(id);

src/plugins/coreplugin/locator/directoryfilter.h

@@ -59,7 +59,7 @@ private:
     QStringList m_exclusionFilters;
     // Our config dialog, uses in addDirectory and editDirectory
     // to give their dialogs the right parent
-    QDialog *m_dialog;
+    QDialog *m_dialog = nullptr;
     Ui::DirectoryFilterOptions m_ui;
     mutable QMutex m_lock;
     QStringList m_files;