Give the optimizer even more hand holding on virtuals

indra/llappearance/lldriverparam.h

indra/llappearance/llpolymorph.h

indra/llappearance/llpolyskeletaldistortion.h

indra/llappearance/lltexglobalcolor.h

indra/llappearance/lltexlayer.h

indra/llappearance/lltexlayerparams.cpp

indra/llappearance/lltexlayerparams.h

indra/llappearance/llviewervisualparam.cpp

indra/llappearance/llviewervisualparam.h

indra/llcommon/lldictionary.h

indra/llmath/xform.h

indra/llprimitive/llprimitive.h

indra/newview/llviewerobject.h

indra/newview/llviewertexlayer.h

indra/newview/llvoavatar.cpp

indra/newview/llvoavatar.h