lupdate complains about some tr() in mythcontext.cpp

[Claude Boucher <claude@…>]

I received the following errors while trying to update the translation source files with lupdate in trunk/mythtv/i18n/.

With svn 15096:

[claude@zeus i18n]$ lupdate translate.pro
../libs/libmyth/mythcontext.cpp:1109: Cannot invoke tr() like this
../libs/libmyth/mythcontext.cpp:1118: Cannot invoke tr() like this
../libs/libmyth/mythcontext.cpp:1126: Cannot invoke tr() like this
../libs/libmyth/mythcontext.cpp:1248: Cannot invoke tr() like this

Same problem with svn 15115 (different line numbers):

../libs/libmyth/mythcontext.cpp:1118: Cannot invoke tr() like this
../libs/libmyth/mythcontext.cpp:1127: Cannot invoke tr() like this
../libs/libmyth/mythcontext.cpp:1135: Cannot invoke tr() like this
../libs/libmyth/mythcontext.cpp:1257: Cannot invoke tr() like this

[Nigel]

(In [15131]) lupdate can't work out that parent is a Q_OBJECT. Use static version of ::tr Closes #4309