[gcc/devel/rust/master] Merge #1425 #1451

[gcc/devel/rust/master] Merge #1425 #1451

[Thomas Schwinge]

https://gcc.gnu.org/g:5865fb27a73a6e7483bc98ba5f33c7f8bc850790

commit 5865fb27a73a6e7483bc98ba5f33c7f8bc850790
Merge: 17b625cbd61 0ec8f938272 92eef6c33d4
Author: bors[bot] <26634292+bors[bot]@users.noreply.github.com>
Date:   Tue Aug 9 14:25:07 2022 +0000

    Merge #1425 #1451
    
    1425: Cleanup frontend entrypoint r=CohenArthur a=CohenArthur
    
    This removes a lot of code that was simply ported from the Go frontend, and forbids the usage of multiple input files.
    
    Addresses #1115
    
    1451: Fix failiure to type inference on unit-structs r=philberty a=philberty
    
    This patch set adds fixes to ensure we can type inference generic unit-structs.
    
    Fixes #1447
    
    Co-authored-by: Arthur Cohen <arthur.cohen@embecosm.com>
    Co-authored-by: Philip Herron <philip.herron@embecosm.com>

Diff:

 gcc/rust/rust-lang.cc                         |  36 +------
 gcc/rust/rust-session-manager.cc              |  23 +++--
 gcc/rust/rust-session-manager.h               |   4 +-
 gcc/rust/rustspec.cc                          | 131 +++-----------------------
 gcc/rust/typecheck/rust-hir-type-check-expr.h |  11 +++
 gcc/rust/typecheck/rust-tyty-coercion.h       |  46 +++++++++
 gcc/rust/typecheck/rust-tyty-rules.h          |  34 +++++++
 gcc/testsuite/rust/compile/issue-1447.rs      |  28 ++++++
 8 files changed, 145 insertions(+), 168 deletions(-)