[PATCH] Rename BlackList class to GlobalList and move it to Transforms/Utils.

[Alexey Samsonov]

  Yes, I understand that "BlackList" will be a poor naming, but I'm not convinced that "GlobalList" is fine either - the latter doesn't make any sense... It would be ideal to show that we provide sanitizer with hints (or instructions, or rules) on how to instrument certain objects.

http://llvm-reviews.chandlerc.com/D1089