debugger: apply custom type display settings also to references

Since a reference is "the same thing" it does not make sense
to offer different choices of displays.

Change-Id: Id9ee31b6f1a8fcc9ff3a523a055017e781249d18
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/watchhandler.cpp

@@ -100,6 +100,8 @@ static QByteArray stripForFormat(const QByteArray &ba)
             --inArray;
         if (c == ' ')
             continue;
+        if (c == '&') // Treat references like the referenced type.
+            continue;
         if (inArray && c >= '0' && c <= '9')
             continue;
         res.append(c);