[D-runtime] [D-Programming-Language/druntime] f28e0e: Merge pull request #149 from dsimcha/master

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: f28e0e53841070047abed9858bddd28fe870f6a7
      https://github.com/D-Programming-Language/druntime/commit/f28e0e53841070047abed9858bddd28fe870f6a7
  Author: Sean Kelly <sean at invisibleduck.org>
  Date:   2012-02-13 (Mon, 13 Feb 2012)

  Changed paths:
    M src/gc/gcx.d

  Log Message:
  -----------
  Merge pull request #149 from dsimcha/master

Cut down on GC lock overhead by using core.sync