util: add a decorator to disable Python's garbage collector Python's GC can cause serious performance regressions if lots of small objects are created within a function. We've empirically found that that happens while loading the revmap.

#!/bin/sh
. $(dirname $0)/common.sh

for b in `hg branches -aq` ; do
    hg co $b || break
    echo verifying $b
    hg svn verify
done