[X86][F16C] Added F16C fast-isel tests to match clang/test/CodeGen/f16c-builtins.c
[X86][F16C] Added F16C fast-isel tests to match clang/test/CodeGen/f16c-builtins.c


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@270837 91177308-0d34-0410-b5e6-96231b3b80d8

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