DMD v2.084.0-beta.1 regression in Tuple.toHash() ?

[Per Nordlöw]

On Wednesday, 19 December 2018 at 09:57:04 UTC, Per Nordlöw wrote:
> My project fails to build with DMD v2.084.0-beta.1 as
>
> In function ”const pure nothrow @nogc @safe ulong 
> std.typecons.Tuple!(char, char).Tuple.toHash()”:
> /usr/include/dmd/phobos/std/typecons.d:1179: undefined 
> reference to ”pure nothrow @nogc @safe ulong 
> object.hashOf!(const(char)).hashOf(ref const(char))”
> /usr/include/dmd/phobos/std/typecons.d:1179: undefined 
> reference to ”pure nothrow @nogc @safe ulong 
> object.hashOf!(const(char)).hashOf(ref const(char))”
>
> Is this a regression?

Ping!