assertions-on-constants incorrectly fails on const blocks

[tesuji]

Summary

In ffi code, sometimes std defines types that may have incompatible layout with third-party codes (windows-sys).
To be more safe, one has to check the layout of a std type and another correspond type has the same layout.

Lint Name

assertions_on_constants

Reproducer

I tried this code:

const _: () = {
    assert!(8 == (7+1));
    // let std_layout = Layout::new::<RawHandle>();
    // let win_sys_layout = Layout::new::<HANDLE>();
    // assert!(std_layout.size() == win_sys_layout.size())
    // assert!(std_layout.align() == win_sys_layout.align())
};

I saw this happen:

error: `assert!(true)` will be optimized out by the compiler
  --> src/internals/c.rs:53:5
   |
53 |     assert!(8 == (7+1));
   |     ^^^^^^^^^^^^^^^^^^^
   |
   = help: remove it

I expected to see this happen: Don't lint.

Version

rustc 1.80.0-nightly (1a7397988 2024-05-17)
binary: rustc
commit-hash: 1a7397988684934ae01a71f524bdfff24895d8cc
commit-date: 2024-05-17
host: x86_64-unknown-linux-gnu
release: 1.80.0-nightly
LLVM version: 18.1.4

Additional Labels

No response