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// RUN: %dafny /compile:0 "%s" > "%t"
// RUN: %diff "%s.expect" "%t"
class Foo {
ghost var Repr: set<object>
}
function SeqRepr(s:seq<Foo>) : set<object>
reads set b | b in s
{
set o,b | b in s && b != null && o in b.Repr :: o // Works if you say "set b,o | ..."
}
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