[gcc(refs/users/marxin/heads/revert-sphinx-v2)] Revert "doc: Remove outdated reference to "core" and front-end downloads"

[gcc(refs/users/marxin/heads/revert-sphinx-v2)] Revert "doc: Remove outdated reference to "core" and front-end downloads"

[Martin Liska]

https://gcc.gnu.org/g:5243d08db17b9380cb0673128fa095bd1dd3e3f4

commit 5243d08db17b9380cb0673128fa095bd1dd3e3f4
Author: Martin Liska <mliska@suse.cz>
Date:   Sun Nov 13 21:48:34 2022 +0100

    Revert "doc: Remove outdated reference to "core" and front-end downloads"
    
    This reverts commit 05432288d4e560556ee0455562639b715d8f8b7d.

Diff:
---
 gcc/doc/install/testing.rst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/doc/install/testing.rst b/gcc/doc/install/testing.rst
index 58d93cc4378..4ae17688440 100644
--- a/gcc/doc/install/testing.rst
+++ b/gcc/doc/install/testing.rst
@@ -22,7 +22,9 @@ but it can give you confidence in your new GCC installation or point out
 problems before you install and start using your new GCC.
 
 First, you must have :ref:`downloaded the testsuites <downloading-the-source>`.
-These are included in the source tarball.
+These are part of the full distribution, but if you downloaded the
+'core' compiler plus any front ends, you must download the testsuites
+separately.
 
 Second, you must have the testing tools installed.  This includes
 `DejaGnu <https://www.gnu.org/software/dejagnu/>`_, Tcl, and Expect;