[TLI] Add declarations for various math header file routines from math-finite.h that create '__<func>_finite as functions

Patch by Chris Chrulski

Differential Revision: https://reviews.llvm.org/D31787

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302955 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed