Commit 289f909621 ("Test conversion of
ulonglong variant to JSON") was trying to ensure the result becomes a
double. So there's no reason to make a test in the _data() function.
Drive-by fix the UB condition on Windows (ulong is 32-bit, so 1ul << 63
is UB).
Change-Id: I0e5f6bec596a4a78bd3bfffd16ca4f8f5219f785
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>