[D-runtime] [D-Programming-Language/druntime] dc1a4d: fix building gc.d with debug=PRINTF

[GitHub via D-runtime]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: dc1a4d29bfc9a99a1f0cb679167043508c6b52d0
      https://github.com/D-Programming-Language/druntime/commit/dc1a4d29bfc9a99a1f0cb679167043508c6b52d0
  Author: Rainer Schuetze <r.sagitario at gmx.de>
  Date:   2015-05-10 (Sun, 10 May 2015)

  Changed paths:
    M src/gc/gc.d

  Log Message:
  -----------
  fix building gc.d with debug=PRINTF


  Commit: 9b249a4fc5badec673683a2051043b33ab8f5c82
      https://github.com/D-Programming-Language/druntime/commit/9b249a4fc5badec673683a2051043b33ab8f5c82
  Author: Rainer Schuetze <r.sagitario at gmx.de>
  Date:   2015-05-10 (Sun, 10 May 2015)

  Changed paths:
    M src/gc/pooltable.d

  Log Message:
  -----------
  fix building gc.d with debug=INVARIANT


  Commit: 450f2e46609381b158c4d32f07b8474a0cdcc674
      https://github.com/D-Programming-Language/druntime/commit/450f2e46609381b158c4d32f07b8474a0cdcc674
  Author: Rainer Schuetze <r.sagitario at gmx.de>
  Date:   2015-05-10 (Sun, 10 May 2015)

  Changed paths:
    M src/gc/gc.d

  Log Message:
  -----------
  fix building gc.d with -debug=PROFILE_API


  Commit: 8e3829e0cc20569253740bd309ec9bc495cab41f
      https://github.com/D-Programming-Language/druntime/commit/8e3829e0cc20569253740bd309ec9bc495cab41f
  Author: Martin Nowak <code at dawg.eu>
  Date:   2015-05-10 (Sun, 10 May 2015)

  Changed paths:
    M src/gc/gc.d
    M src/gc/pooltable.d

  Log Message:
  -----------
  Merge pull request #1262 from rainers/gc_debug_builds

Fix GC debug builds


Compare: https://github.com/D-Programming-Language/druntime/compare/f1805a9b20e4...8e3829e0cc20