QMetaObject: move QMetaMethodPrivate into an unnamed namespace

So the compiler doesn't feel like it must emit these functions. They're
not used outside of qmetaobject.cpp.

Change-Id: I36b24183fbd041179f2ffffd170228c6e94b5f9b
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/corelib/kernel/qmetaobject.h b/src/corelib/kernel/qmetaobject.h
index 8e7ce0c15e..0740acef60 100644
--- a/src/corelib/kernel/qmetaobject.h
+++ b/src/corelib/kernel/qmetaobject.h
@@ -150,6 +150,7 @@ private:
     static QMetaMethod fromRelativeMethodIndex(const QMetaObject *mobj, int index);
     static QMetaMethod fromRelativeConstructorIndex(const QMetaObject *mobj, int index);
 
+protected:
     struct Data {
         enum { Size = 6 };
 
@@ -169,7 +170,6 @@ private:
 
     const QMetaObject *mobj;
     Data data;
-    friend class QMetaMethodPrivate;
     friend struct QMetaObject;
     friend struct QMetaObjectPrivate;
     friend class QObject;