Upstream: hide_headers_hash handling at http level. When headers to hide are set at the "http" level and not redefined in a server block, we now preserve compiled headers hash into the "http" section configuration to inherit this hash to all servers.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


have=NGX_SUPPRESS_WARN . auto/have

have=NGX_SMP . auto/have