[Bug c++/70862] [concepts] adding a concept-constrained version of a variable template causes multiple definition assembler error

[ryan.burn at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70862

--- Comment #3 from ryan.burn at gmail dot com ---
It's a different bug. The test case from 70095 compiles fine with the trunk
from 20160428, but the above example won't.