[D-runtime] [D-Programming-Language/druntime] 12b386: Merge pull request #108 from dsimcha/master

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: 12b386480dfbe72f64667ee95a50c2d7e6735c90
      https://github.com/D-Programming-Language/druntime/commit/12b386480dfbe72f64667ee95a50c2d7e6735c90
  Author: Sean Kelly <sean at invisibleduck.org>
  Date:   2012-01-31 (Tue, 31 Jan 2012)

  Changed paths:
    M src/gc/gcx.d
  M src/rt/lifetime.d

  Log Message:
  -----------
  Merge pull request #108 from dsimcha/master

GC Optimizations Round 2