Fix windows warning in TQObject.h
Fix windows warning in TQObject.h

Like:
root\include\TQObject.h(121): warning C4706: assignment within
conditional expression
olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root