GDB 9.1 release -- 2019-11-01 Update

[Joel Brobecker <brobecker@adacore.com>]

Hi everyone,

Let's do a quick update on where we are respective to the next release.

Objective #1 is to branch. Before we do so, we need to identify
the list of changes that are large and/or tricky enough that we'd
want those change to be done in master, prior to branching.

Below is the list of patches that I know about. If your name is
next to it, it means you're the patch's champion ;-).

If there are others you think need to be pushed before we branch,
please let me know. Another way to catch my attention is to use PRs
with the target milestone being set to "9.1".

Still Pending:
--------------

  - [Tom DV] Only force INTERP_CONSOLE ui_out for breakpoint commands in MI mode
    https://sourceware.org/ml/gdb-patches/2019-10/msg00099.html
    Gerrit: https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/28

    Pedro gave it the OK, but mentioned that he'd like Andrew to review.

  - [Tom DV] Prefer var def over decl
    https://sourceware.org/ml/gdb-patches/2019-09/msg00161.html
    Gerrit: https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/29

    Tom T said the patch is reasonable, but was wondering whether
    we shouldn't even be in that situation in the first place, if
    we were to not create symbols for declarations...

  - [Christian B] The threaded symbol loading that tromey Christian have been working on
    Missing an URL to the patch, so can't check progress

Completed since the last update (2019-10-12):
---------------------------------------------

  - [Christian B] Load system gdbinit files from a directory
    https://sourceware.org/ml/gdb-patches/2019-10/msg00125.html
    https://www.sourceware.org/ml/gdb-patches/2019-10/msg01035.html

  - [Tom DV] Fix 'Unexpected register class' assert in amd64_push_arguments
    https://sourceware.org/ml/gdb-patches/2019-10/msg00293.html
    https://www.sourceware.org/ml/gdb-cvs/2019-10/msg00130.html

  - [Tom DV] Fix inferior call arg passing for amd64
    https://sourceware.org/ml/gdb-patches/2019-10/msg00307.html
    https://www.sourceware.org/ml/gdb-cvs/2019-10/msg00131.html

Thank you!
-- 
Joel