r192521 - Add missing flags -fexpensive-optimizations and -minline-all-stringops as noops.

[Joerg Sonnenberger]

On Mon, Oct 14, 2013 at 02:45:22PM -0700, Nick Lewycky wrote:
> As a practical matter, I'm adding these so that I can continue to build
> software that used to build. They're marked clang_ignored_[fm]_Group so
> that we can find which flags aren't implemented.

I have a certain issue with adding misguided flags that might have made
seen two decades ago and got C&P around.

> I'm not sure what you're saying -- are you arguing that implementing
> -minline-all-stringops is dangerous, or that silently ignoring
> -minline-all-stringops is dangerous?

Silently ignoring it is wrong. The behavior it is supposed to provide is
not available.

Joerg