Make the lifetime accurate which is used in the region constraints part #96315
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This PR fixes the FIXME about lifetime using in the region constraints part.
We cannot write
<'graph, 'tcx, D>
because the definition ofSuccessors<'0, '1, D>
requires'1 : '0
.We cannot add bound to
'graph
either because'graph
is required to be an arbitrary value in the definition ofWithSuccessors
So the most accurate way is to use
<'s, 'tcx, D>
.cc @Aaron1011 who added this FIXME in #85343