[gcc/devel/rust/master] Merge #1215

[gcc/devel/rust/master] Merge #1215

[Thomas Schwinge]

https://gcc.gnu.org/g:74e836599ce80a11b1fe28065ed7aae6ffa3b7e2

commit 74e836599ce80a11b1fe28065ed7aae6ffa3b7e2
Merge: 9ea940e4dca 2df8cf57e62
Author: bors[bot] <26634292+bors[bot]@users.noreply.github.com>
Date:   Fri May 6 12:56:12 2022 +0000

    Merge #1215
    
    1215: Report `pub restricted` violations r=CohenArthur a=CohenArthur
    
    Needs #1202. The only commit worth reviewing in the meantime is [c229c7f](https://github.com/Rust-GCC/gccrs/pull/1215/commits/c229c7f891f02c3ecd1c7b743b35edb3fc2c5539)
    
    This visitor allows us to report invalid restrictions in `pub(restricted)` visibilities. I've added documentation and an example to the visitor to explain the expected behavior.
    
    Co-authored-by: Arthur Cohen <arthur.cohen@embecosm.com>

Diff:

 gcc/rust/Make-lang.in                           |   1 +
 gcc/rust/hir/tree/rust-hir-full-test.cc         |   2 +
 gcc/rust/privacy/rust-privacy-check.cc          |   8 +-
 gcc/rust/privacy/rust-pub-restricted-visitor.cc | 178 ++++++++++++++++++++++++
 gcc/rust/privacy/rust-pub-restricted-visitor.h  | 120 ++++++++++++++++
 gcc/rust/privacy/rust-visibility-resolver.cc    |  17 +--
 gcc/rust/privacy/rust-visibility-resolver.h     |   3 -
 gcc/testsuite/rust/compile/pub_restricted_2.rs  |  18 +++
 8 files changed, 325 insertions(+), 22 deletions(-)