Remove #![warn(unreachable_pub)] from all compiler/ crates.

(Except for `rustc_codegen_cranelift`.)

It's no longer necessary now that `unreachable_pub` is in the workspace
lints.

compiler/rustc_abi/src/lib.rs

@@ -5,7 +5,6 @@
 #![cfg_attr(feature = "nightly", feature(rustc_attrs))]
 #![cfg_attr(feature = "nightly", feature(rustdoc_internals))]
 #![cfg_attr(feature = "nightly", feature(step_trait))]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 /*! ABI handling for rustc

compiler/rustc_arena/src/lib.rs

@@ -23,7 +23,6 @@
 #![feature(maybe_uninit_slice)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::alloc::Layout;

compiler/rustc_ast/src/lib.rs

@@ -19,7 +19,6 @@
 #![feature(never_type)]
 #![feature(rustdoc_internals)]
 #![feature(stmt_expr_attributes)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod util {

compiler/rustc_ast_ir/src/lib.rs

@@ -9,7 +9,6 @@
 #![cfg_attr(feature = "nightly", allow(internal_features))]
 #![cfg_attr(feature = "nightly", feature(never_type))]
 #![cfg_attr(feature = "nightly", feature(rustc_attrs))]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 #[cfg(feature = "nightly")]

compiler/rustc_ast_lowering/src/lib.rs

@@ -38,7 +38,6 @@
 #![feature(if_let_guard)]
 #![feature(let_chains)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::sync::Arc;

compiler/rustc_ast_passes/src/lib.rs

@@ -10,7 +10,6 @@
 #![feature(iter_is_partitioned)]
 #![feature(let_chains)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod ast_validation;

compiler/rustc_ast_pretty/src/lib.rs

@@ -3,7 +3,6 @@
 #![doc(rust_logo)]
 #![feature(box_patterns)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod helpers;

compiler/rustc_attr_data_structures/src/lib.rs

@@ -3,7 +3,6 @@
 #![doc(rust_logo)]
 #![feature(let_chains)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod attributes;

compiler/rustc_attr_parsing/src/lib.rs

@@ -80,7 +80,6 @@
 #![doc(rust_logo)]
 #![feature(let_chains)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 #[macro_use]

compiler/rustc_borrowck/src/lib.rs

@@ -13,7 +13,6 @@
 #![feature(rustdoc_internals)]
 #![feature(stmt_expr_attributes)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::borrow::Cow;

compiler/rustc_builtin_macros/src/lib.rs

@@ -18,7 +18,6 @@
 #![feature(rustdoc_internals)]
 #![feature(string_from_utf8_lossy_owned)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 extern crate proc_macro;

compiler/rustc_codegen_llvm/src/lib.rs

@@ -19,7 +19,6 @@
 #![feature(rustdoc_internals)]
 #![feature(slice_as_array)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::any::Any;

compiler/rustc_codegen_ssa/src/lib.rs

@@ -14,7 +14,6 @@
 #![feature(rustdoc_internals)]
 #![feature(trait_alias)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 //! This crate contains codegen code that is used by all codegen backends (LLVM and others).

compiler/rustc_const_eval/src/lib.rs

@@ -16,7 +16,6 @@
 #![feature(unqualified_local_imports)]
 #![feature(yeet_expr)]
 #![warn(unqualified_local_imports)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod check_consts;

compiler/rustc_driver_impl/src/lib.rs

@@ -16,7 +16,6 @@
 #![feature(result_flattening)]
 #![feature(rustdoc_internals)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::cmp::max;

compiler/rustc_error_codes/src/lib.rs

@@ -6,7 +6,6 @@
 #![deny(rustdoc::invalid_codeblock_attributes)]
 #![doc(rust_logo)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 // This higher-order macro defines the error codes that are in use. It is used

compiler/rustc_error_messages/src/lib.rs

@@ -4,7 +4,6 @@
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
 #![feature(type_alias_impl_trait)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::borrow::Cow;

compiler/rustc_errors/src/lib.rs

@@ -24,7 +24,6 @@
 #![feature(trait_alias)]
 #![feature(try_blocks)]
 #![feature(yeet_expr)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 extern crate self as rustc_errors;

compiler/rustc_expand/src/lib.rs

@@ -13,7 +13,6 @@
 #![feature(rustdoc_internals)]
 #![feature(try_blocks)]
 #![feature(yeet_expr)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 extern crate proc_macro as pm;

compiler/rustc_feature/src/lib.rs

@@ -15,7 +15,6 @@
 #![allow(internal_features)]
 #![doc(rust_logo)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod accepted;

compiler/rustc_fluent_macro/src/lib.rs

@@ -7,7 +7,6 @@
 #![feature(proc_macro_span)]
 #![feature(rustdoc_internals)]
 #![feature(track_path)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use proc_macro::TokenStream;

compiler/rustc_graphviz/src/lib.rs

@@ -277,7 +277,6 @@
 )]
 #![doc(rust_logo)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::borrow::Cow;

compiler/rustc_hir/src/lib.rs

@@ -13,7 +13,6 @@
 #![feature(never_type)]
 #![feature(rustc_attrs)]
 #![feature(variant_count)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 extern crate self as rustc_hir;

compiler/rustc_hir_analysis/src/lib.rs

@@ -73,7 +73,6 @@ This API is completely unstable and subject to change.
 #![feature(slice_partition_dedup)]
 #![feature(try_blocks)]
 #![feature(unwrap_infallible)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 // These are used by Clippy.

compiler/rustc_hir_pretty/src/lib.rs

@@ -3,7 +3,6 @@
 
 // tidy-alphabetical-start
 #![recursion_limit = "256"]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::cell::Cell;

compiler/rustc_hir_typeck/src/lib.rs

@@ -8,7 +8,6 @@
 #![feature(let_chains)]
 #![feature(never_type)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod _match;

compiler/rustc_incremental/src/lib.rs

@@ -7,7 +7,6 @@
 #![doc(rust_logo)]
 #![feature(file_buffered)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod assert_dep_graph;

compiler/rustc_index/src/lib.rs

@@ -4,7 +4,6 @@
 #![cfg_attr(feature = "nightly", feature(extend_one, step_trait, test))]
 #![cfg_attr(feature = "nightly", feature(new_range_api))]
 #![cfg_attr(feature = "nightly", feature(new_zeroed_alloc))]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod bit_set;

compiler/rustc_infer/src/lib.rs

@@ -24,7 +24,6 @@
 #![feature(let_chains)]
 #![feature(rustdoc_internals)]
 #![recursion_limit = "512"] // For rustdoc
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod errors;

compiler/rustc_interface/src/lib.rs

@@ -4,7 +4,6 @@
 #![feature(iter_intersperse)]
 #![feature(let_chains)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod callbacks;

compiler/rustc_lexer/src/lib.rs

@@ -23,7 +23,6 @@
 // We want to be able to build this crate with a stable compiler,
 // so no `#![feature]` attributes should be added.
 #![deny(unstable_features)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod cursor;

compiler/rustc_lint/src/lib.rs

@@ -32,7 +32,6 @@
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod async_closures;

compiler/rustc_lint_defs/src/lib.rs

@@ -1,7 +1,3 @@
-// tidy-alphabetical-start
-#![warn(unreachable_pub)]
-// tidy-alphabetical-end
-
 use rustc_abi::ExternAbi;
 use rustc_ast::AttrId;
 use rustc_ast::attr::AttributeExt;

compiler/rustc_llvm/src/lib.rs

@@ -4,7 +4,6 @@
 #![doc(rust_logo)]
 #![feature(extern_types)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::cell::RefCell;

compiler/rustc_macros/src/lib.rs

@@ -6,7 +6,6 @@
 #![feature(proc_macro_diagnostic)]
 #![feature(proc_macro_span)]
 #![feature(proc_macro_tracked_env)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use proc_macro::TokenStream;

compiler/rustc_metadata/src/lib.rs

@@ -15,7 +15,6 @@
 #![feature(proc_macro_internals)]
 #![feature(rustdoc_internals)]
 #![feature(trusted_len)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 extern crate proc_macro;

compiler/rustc_middle/src/lib.rs

@@ -61,7 +61,6 @@
 #![feature(try_trait_v2_yeet)]
 #![feature(type_alias_impl_trait)]
 #![feature(yeet_expr)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 #[cfg(test)]

compiler/rustc_mir_build/src/lib.rs

@@ -8,7 +8,6 @@
 #![feature(if_let_guard)]
 #![feature(let_chains)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 // The `builder` module used to be named `build`, but that was causing GitHub's

compiler/rustc_mir_dataflow/src/lib.rs

@@ -7,7 +7,6 @@
 #![feature(let_chains)]
 #![feature(never_type)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use rustc_middle::ty;

compiler/rustc_mir_transform/src/lib.rs

@@ -12,7 +12,6 @@
 #![feature(never_type)]
 #![feature(try_blocks)]
 #![feature(yeet_expr)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use hir::ConstContext;

compiler/rustc_monomorphize/src/lib.rs

@@ -4,7 +4,6 @@
 #![feature(if_let_guard)]
 #![feature(impl_trait_in_assoc_type)]
 #![feature(let_chains)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use rustc_hir::lang_items::LangItem;

compiler/rustc_next_trait_solver/src/lib.rs

@@ -6,7 +6,6 @@
 
 // tidy-alphabetical-start
 #![allow(rustc::usage_of_type_ir_inherent)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod canonicalizer;

compiler/rustc_parse/src/lib.rs

@@ -12,7 +12,6 @@
 #![feature(iter_intersperse)]
 #![feature(let_chains)]
 #![feature(string_from_utf8_lossy_owned)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::path::{Path, PathBuf};

compiler/rustc_parse_format/src/lib.rs

@@ -13,7 +13,6 @@
     html_playground_url = "https://play.rust-lang.org/",
     test(attr(deny(warnings)))
 )]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub use Alignment::*;

compiler/rustc_passes/src/lib.rs

@@ -12,7 +12,6 @@
 #![feature(map_try_insert)]
 #![feature(rustdoc_internals)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use rustc_middle::query::Providers;

compiler/rustc_pattern_analysis/src/lib.rs

@@ -6,7 +6,6 @@
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::untranslatable_diagnostic)]
 #![cfg_attr(feature = "rustc", feature(let_chains))]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod constructor;

compiler/rustc_privacy/src/lib.rs

@@ -6,7 +6,6 @@
 #![feature(let_chains)]
 #![feature(rustdoc_internals)]
 #![feature(try_blocks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod errors;

compiler/rustc_query_impl/src/lib.rs

@@ -8,7 +8,6 @@
 #![feature(min_specialization)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use rustc_data_structures::stable_hasher::HashStable;

compiler/rustc_query_system/src/lib.rs

@@ -6,7 +6,6 @@
 #![feature(hash_raw_entry)]
 #![feature(let_chains)]
 #![feature(min_specialization)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod cache;

compiler/rustc_resolve/src/lib.rs

@@ -20,7 +20,6 @@
 #![feature(let_chains)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::cell::{Cell, RefCell};

compiler/rustc_sanitizers/src/lib.rs

@@ -5,7 +5,6 @@
 
 // tidy-alphabetical-start
 #![feature(let_chains)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod cfi;

compiler/rustc_serialize/src/lib.rs

@@ -14,7 +14,6 @@
 #![feature(min_specialization)]
 #![feature(never_type)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub use self::serialize::{Decodable, Decoder, Encodable, Encoder};

compiler/rustc_session/src/lib.rs

@@ -6,7 +6,6 @@
 // To generate CodegenOptionsTargetModifiers and UnstableOptionsTargetModifiers enums
 // with macro_rules, it is necessary to use recursive mechanic ("Incremental TT Munchers").
 #![recursion_limit = "256"]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod errors;

compiler/rustc_smir/src/lib.rs

@@ -15,7 +15,6 @@
 )]
 #![doc(rust_logo)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub mod rustc_internal;

compiler/rustc_span/src/lib.rs

@@ -32,7 +32,6 @@
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
 #![feature(slice_as_chunks)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 // The code produced by the `Encodable`/`Decodable` derive macros refer to

compiler/rustc_symbol_mangling/src/lib.rs

@@ -93,7 +93,6 @@
 #![doc(rust_logo)]
 #![feature(let_chains)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use rustc_hir::def::DefKind;

compiler/rustc_target/src/lib.rs

@@ -16,7 +16,6 @@
 #![feature(let_chains)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use std::path::{Path, PathBuf};

compiler/rustc_trait_selection/src/lib.rs

@@ -31,7 +31,6 @@
 #![feature(unwrap_infallible)]
 #![feature(yeet_expr)]
 #![recursion_limit = "512"] // For rustdoc
-#![warn(unreachable_pub)] // For rustdoc
 // tidy-alphabetical-end
 
 pub mod error_reporting;

compiler/rustc_traits/src/lib.rs

@@ -2,7 +2,6 @@
 
 // tidy-alphabetical-start
 #![recursion_limit = "256"]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod codegen;

compiler/rustc_transmute/src/lib.rs

@@ -1,6 +1,5 @@
 // tidy-alphabetical-start
 #![feature(never_type)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 pub(crate) use rustc_data_structures::fx::{FxIndexMap as Map, FxIndexSet as Set};

compiler/rustc_ty_utils/src/lib.rs

@@ -16,7 +16,6 @@
 #![feature(let_chains)]
 #![feature(never_type)]
 #![feature(rustdoc_internals)]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 use rustc_middle::query::Providers;

compiler/rustc_type_ir/src/lib.rs

@@ -6,7 +6,6 @@
     feature(associated_type_defaults, never_type, rustc_attrs, negative_impls)
 )]
 #![cfg_attr(feature = "nightly", allow(internal_features))]
-#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 extern crate self as rustc_type_ir;