fix(rustdoc): print the doc(hidden) attribute the same as others

[poliorcetics]

Closes #132304

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[rust-log-analyzer]

The job x86_64-gnu-llvm-18 failed! Check out the build log: (web) (plain)

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#21 exporting to docker image format
#21 sending tarball 29.8s done
#21 DONE 35.2s
##[endgroup]
Setting extra environment values for docker:  --env ENABLE_GCC_CODEGEN=1 --env GCC_EXEC_PREFIX=/usr/lib/gcc/
[CI_JOB_NAME=x86_64-gnu-llvm-18]
debug: `DISABLE_CI_RUSTC_IF_INCOMPATIBLE` configured.
---
sccache: Starting the server...
##[group]Configure the build
configure: processing command line
configure: 
configure: build.configure-args := ['--build=x86_64-unknown-linux-gnu', '--llvm-root=/usr/lib/llvm-18', '--enable-llvm-link-shared', '--set', 'rust.randomize-layout=true', '--set', 'rust.thin-lto-import-instr-limit=10', '--enable-verbose-configure', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--set', 'rust.lld=false', '--disable-dist-src', '--release-channel=nightly', '--enable-debug-assertions', '--enable-overflow-checks', '--enable-llvm-assertions', '--set', 'rust.verify-llvm-ir', '--set', 'rust.codegen-backends=llvm,cranelift,gcc', '--set', 'llvm.static-libstdcpp', '--enable-new-symbol-mangling']
configure: target.x86_64-unknown-linux-gnu.llvm-config := /usr/lib/llvm-18/bin/llvm-config
configure: llvm.link-shared     := True
configure: rust.randomize-layout := True
configure: rust.thin-lto-import-instr-limit := 10
---
  Downloaded boml v0.3.1
   Compiling boml v0.3.1
   Compiling y v0.1.0 (/checkout/compiler/rustc_codegen_gcc/build_system)
    Finished `release` profile [optimized] target(s) in 4.07s
     Running `/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-codegen/x86_64-unknown-linux-gnu/release/y test --use-system-gcc --use-backend gcc --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/cg_gcc --release --mini-tests --std-tests`
Using system GCC
[BUILD] example
[AOT] mini_core_hello_world
/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/cg_gcc/mini_core_hello_world
abc
---
---- [rustdoc] tests/rustdoc/display-hidden-items.rs stdout ----

error: htmldocck failed!
status: exit status: 1
command: "/usr/bin/python3" "/checkout/src/etc/htmldocck.py" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/rustdoc/display-hidden-items" "/checkout/tests/rustdoc/display-hidden-items.rs"
--- stderr -------------------------------
10: has check failed
 `XPATH PATTERN` did not match
 `XPATH PATTERN` did not match
 //@ has - '//*[@id="reexport.hidden_reexport"]/code' '#[doc(hidden)] pub use hidden::inside_hidden as hidden_reexport;'
 `XPATH PATTERN` did not match
 `XPATH PATTERN` did not match
     //@ has - '//*[@id="associatedconstant.BAR"]/*[@class="code-header"]' '#[doc(hidden)] const BAR: u32 = 0u32'
 `XPATH PATTERN` did not match
 `XPATH PATTERN` did not match
     //@ has - '//*[@id="associatedconstant.BAR"]/*[@class="code-header"]' '#[doc(hidden)] const BAR: u32 = 0u32'
 `XPATH PATTERN` did not match
 `XPATH PATTERN` did not match
     //@ has - '//*[@id="method.foo"]/*[@class="code-header"]' '#[doc(hidden)] fn foo()'
 `XPATH PATTERN` did not match
 `XPATH PATTERN` did not match
 //@ has - '//code' '#[doc(hidden)] pub enum HiddenEnum'
Encountered 5 errors
------------------------------------------

[poliorcetics]

I'm having trouble printing attributes correctly everywhere, e.g:

Before:

After:

[GuillaumeGomez]

Normally there is a marker in the docs for doc hidden items (an eye or something like that) and I'm wondering if we didn't add this information in the declaration in purpose... To be checked when I have some time. :D