Provided also, that the time during which any person otherwise capable of resisting any claim to any of the matters before mentioned shall have been or shall be an infant, idiot, non compos mentis, feme covert, or tenant for life, or during which any action or suit shall have been pending, and which shall have been diligently prosecuted, until abated by the death of any party or parties thereto, shall be excluded in the computation of the periods herein-before mentioned, except only in cases where the right or claim is hereby declared to be absolute and indefeasible.