5ba6e9164a
Make __gnu_h2f_ieee and __gnu_f2h_ieee visible so that hipTestHalf
test can succeed in Clang compiler + Hcc RT.
Change-Id: I5f7d5db19e559b3b66356f0170a8dbc1e5505f3e
[ROCm/clr commit: 314766b4c2]