Add Option unit tests to the make build

Previously, they were only built and run in the CMake build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186756 91177308-0d34-0410-b5e6-96231b3b80d8
Have InlineCost check constant fcmps

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186758 91177308-0d34-0410-b5e6-96231b3b80d8