Merge #1847

1847: Merge upstream, last commit before 2023-01-31 GCC/Rust upstreaming r=tschwinge a=tschwinge

Co-authored-by: Andrea Corallo <andrea.corallo@arm.com>
Co-authored-by: Richard Biener <rguenther@suse.de>
Co-authored-by: Srinath Parvathaneni <srinath.parvathaneni@arm.com>
Co-authored-by: Iain Sandoe <iain@sandoe.co.uk>
Co-authored-by: François Dumont <fdumont@gcc.gnu.org>
Co-authored-by: Jason Merrill <jason@redhat.com>
Co-authored-by: Harald Anlauf <anlauf@gmx.de>
Co-authored-by: Marek Polacek <polacek@redhat.com>
Co-authored-by: GCC Administrator <gccadmin@gcc.gnu.org>
Co-authored-by: Lulu Cheng <chenglulu@loongson.cn>
Co-authored-by: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Co-authored-by: Jakub Jelinek <jakub@redhat.com>
Co-authored-by: Eric Biggers <ebiggers@google.com>
Co-authored-by: Xianmiao Qu <cooper.qu@linux.alibaba.com>
Co-authored-by: Andre Vieira <andre.simoesdiasvieira@arm.com>

diff --cc gcc/rust/Make-lang.in
Simple merge

diff --cc gcc/rust/ast/rust-ast.cc
Simple merge

diff --cc gcc/rust/ast/rust-ast.h
Simple merge

diff --cc gcc/rust/ast/rust-item.h
Simple merge

diff --cc gcc/rust/ast/rust-macro.h
Simple merge

diff --cc gcc/rust/expand/rust-attribute-visitor.cc
Simple merge

diff --cc gcc/rust/expand/rust-attribute-visitor.h
Simple merge

diff --cc gcc/rust/expand/rust-macro-builtins.cc
Simple merge

diff --cc gcc/rust/expand/rust-macro-expand.cc
Simple merge

diff --cc gcc/rust/expand/rust-macro-expand.h
Simple merge

diff --cc gcc/rust/expand/rust-macro-invoc-lexer.h
Simple merge

diff --cc gcc/rust/rust-session-manager.cc
Simple merge