Don't use static const & locals for format tables. This hits an unimplemented feature in Clang. Work around this by using values instead of references. BUG=angleproject:1160 Change-Id: I94b08d8fd9a09bbbfbe4bcd1b6f9d7f0031ce18d Reviewed-on: https://chromium-review.googlesource.com/308910 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>