Moved the NANs and INFs global constant string tables to function local scope.
Moved the NANs and INFs global constant string tables to function
local scope.

This is really a workaround for an unknown issue that appears
only with hsa-native: The static qualifiers made hsa-native
kernel compilation fail due to the symbols not getting in the
final binary.

franz/pocl,Oblomov/pocl,franz/pocl,pocl/pocl,Oblomov/pocl,Oblomov/pocl,pocl/pocl,franz/pocl,franz/pocl,Oblomov/pocl,Oblomov/pocl,pocl/pocl,franz/pocl,pocl/pocl,pocl/pocl