SearchForAddressOfSymbol(): Disable 3 symbols, copysignf, fminf, and fmaxf, on msc17. *These were added in VS 2013*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221971 91177308-0d34-0410-b5e6-96231b3b80d8