pp_aassign: scan on DEBUGGING builds

At compile-time we often decide that a list assign op is safe from
possible commonality (($a,$b) = ($b,$a)), and so skip the run-time
mark-and-sweep commonality finder.

This commit makes it always mark-and-sweep at runtime, and to panic if
if finds commonality when at compile-time we had determined that there
couldn't possibly be any.

This commit fails the t/perf/benchmark.t test as it contains something
which triggers the panic. This will be fixed in the next commit.

0 files changed, 0 insertions, 0 deletions