julia

c8ca0850 - Enable FPO again on non-windows or freebsd

Enable FPO again on non-windows or freebsd This was enabled when we were porting to 3.7 for better unwinding. The unwinding should have been improved (thanks to registering JIT functions to libunwind and a new libunwind version) on non-windows a lot that we don't need this anymore. The performance impact of this is likely small but it makes `code_native` for simple functions quite a bit simpler and has the biggest yet effect on the code size in system image (-4%).