[gcc/devel/rust/master] Merge #1137

[gcc/devel/rust/master] Merge #1137

[Thomas Schwinge]

https://gcc.gnu.org/g:dc57f4ced0d168be911ca22db81fe9526e2d70a8

commit dc57f4ced0d168be911ca22db81fe9526e2d70a8
Merge: f6e244dc0e7 038677dd830
Author: bors[bot] <26634292+bors[bot]@users.noreply.github.com>
Date:   Wed Apr 20 06:51:19 2022 +0000

    Merge #1137
    
    1137: ast: lower: Split rust-lower-base in its own source file r=CohenArthur a=CohenArthur
    
    The implementation of all functions declared in `rust-ast-lower-base.h` was a big offender of our "definitions in headers" problem, spanning over 900 lines of code. We can do the same for basically all headers in `gcc/rust/hir` which all contain some definitions that have accumulated over time
    
    Co-authored-by: Arthur Cohen <arthur.cohen@embecosm.com>

Diff:

 gcc/rust/Make-lang.in               |   1 +
 gcc/rust/hir/rust-ast-lower-base.cc | 889 ++++++++++++++++++++++++++++++++++++
 gcc/rust/hir/rust-ast-lower-base.h  | 377 +++++++--------
 gcc/rust/hir/rust-ast-lower.cc      | 346 --------------
 4 files changed, 1067 insertions(+), 546 deletions(-)