[Patch, PR 61720] Clear regex BFS match queue after every iteration

[Jonathan Wakely]

On 9 July 2014 18:33, Mike Stump wrote:
> The other limit is how big the resulting program is.  Too large, and it won’t test on a small memory system.  Under a meg, and most people don’t care.  As it climbs above that it starts mattering more.

If the test is driven by a data file containing the cases to test then
the executable going to be pretty small, as it reads a single case
form the file and runs it, then loops. So executable size shouldn't be
an issue here.