For template instances, forward declare its arguments.
For template instances, forward declare its arguments.

Still missing a fwd decl of explicit instantiations!

karies/cling,karies/cling,root-mirror/cling,karies/cling,marsupial/cling,perovic/cling,root-mirror/cling,root-mirror/cling,root-mirror/cling,root-mirror/cling,marsupial/cling,perovic/cling,marsupial/cling,perovic/cling,root-mirror/cling,marsupial/cling,karies/cling,marsupial/cling,marsupial/cling,karies/cling,perovic/cling,perovic/cling,karies/cling