Still fails if the C and D middlemen are cut out (1.039 Windows):
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template Tuple(T...) { alias T Tuple; }
enum J { N }
template A(){ const J M = J.N; }
template B(){ alias A!() G; }
alias Tuple!(Tuple!(B!())[0].G) L;
pragma(msg, L.stringof);
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bz2432.d(8): Error: expression A!() is not a valid template value argument
bz2432.d(8): template instance bz2432.Tuple!(A!()) error instantiating
J 00192E30
ty = 9
Assertion failure: '0' on line 125 in file 'mtype.c'
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