[gcc/devel/rust/master] Merge #1519

[Thomas Schwinge]

https://gcc.gnu.org/g:4f0a2729d78d77f14140531ca809d1c45311f0c9

commit 4f0a2729d78d77f14140531ca809d1c45311f0c9
Merge: ceb43210f8a 63403f0af72
Author: bors[bot] <26634292+bors[bot]@users.noreply.github.com>
Date:   Wed Aug 31 21:38:32 2022 +0000

    Merge #1519
    
    1519: Fix generic substitution on unit structs r=philberty a=philberty
    
    Fixes #1518
    
    Co-authored-by: Philip Herron <philip.herron@embecosm.com>

Diff:

 gcc/rust/typecheck/rust-hir-trait-resolve.cc   |  3 +++
 gcc/rust/typecheck/rust-hir-type-check-expr.cc | 12 ++++++++++++
 gcc/rust/typecheck/rust-tyty-bounds.cc         | 15 +++++++++++++++
 gcc/rust/typecheck/rust-tyty.h                 |  7 +++++++
 4 files changed, 37 insertions(+)