[RFA 1/2] Speed up dict_hash

[Tom Tromey]

>>>>> "Pedro" == Pedro Alves <palves@redhat.com> writes:

Pedro> I'm seeing a lot of time (24%!) spent in gettext, via complaints...

Hmm, that sounds familiar somehow.

Pedro> Maybe you were building with --disable-intl before?

Not intentionally but perhaps I was missing a dependency.

Pedro> The patch below, improves "gdb -nx -readnow -batch gdb"
Pedro> from ~11.s to ~7.8s, for me (gcc 5.3.1, -O2, x86_64).

Seems like a good idea.  -readnow isn't really used, of course, but I
use it as a simpler-to-measure proxy for CU expansion time, which does
matter occasionally.

Tom