I just reread this thread again.  Is this one of these situations where almost everyone agrees, but the fix just didn't happen?

In particular, there is still no formal relationship between versions of the compiler and versions of the testsuite that tests it -- that seems odd!  Can we please make testsuite at least a sub-module?  If we count this long email thread as rough consensus, is it just waiting on someone of sufficient authority typing a "git submodule add" command (and tweaking sync-all accordingly)?

Also, Jan's suggestion sounded good -- that once all child repos are git submodules then sync-all can be replaced with something that helps out with git submodule branching, as it helps out with multi-repo branching now (a little bit).

Best,

  -Ryan