[PATCH] Fix ASan issue 305 -- don't instrument .CRT initializer/terminator callbacks

[Alexander Potapenko]

LGTM.
Please add a link to the CRT documentation (e.g. http://msdn.microsoft.com/ru-ru/library/bb918180(v=vs.100).aspx) and make sure there's a test.

http://reviews.llvm.org/D3607