[D-runtime] [D-Programming-Language/druntime] 4cda59: Fix build breakage due to bug# 8081.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: 4cda59a17779bbdbd645c7772771cdccdbcc2df2
      https://github.com/D-Programming-Language/druntime/commit/4cda59a17779bbdbd645c7772771cdccdbcc2df2
  Author: jmdavis <jmdavisProg at gmx.com>
  Date:   2012-05-10 (Thu, 10 May 2012)

  Changed paths:
    M src/core/atomic.d

  Log Message:
  -----------
  Fix build breakage due to bug# 8081.