[PATCH] Implement sin/cos for sphereflake test-suite

[robert lytton]

  Am I correct that std::cout and std:cerr both end up in the output generated by LNT? This is certainly what I am finding.
  Could we remove the:
    std::cerr << count << " spheres.";
  as the XCore will not buffer the output but insert it as seen above.

http://llvm-reviews.chandlerc.com/D3098