Rollup merge of #126717 - nnethercote:rustfmt-use-pre-cleanups, r=jieyouxu

Clean up some comments near `use` declarations

#125443 will reformat all `use` declarations in the repository. There are a few edge cases involving comments on `use` declarations that require care. This PR cleans up some clumsy comment cases, taking us a step closer to #125443 being able to merge.

r? ``@lqd``

9 files changed, 9 insertions, 0 deletions

diff --git a/src/librustdoc/passes/calculate_doc_coverage.rs b/src/librustdoc/passes/calculate_doc_coverage.rs
index 592dd0a145c..9e576002dc3 100644
--- a/src/librustdoc/passes/calculate_doc_coverage.rs
+++ b/src/librustdoc/passes/calculate_doc_coverage.rs
@@ -1,4 +1,5 @@
 //! Calculates information used for the --show-coverage flag.
+
 use crate::clean;
 use crate::core::DocContext;
 use crate::html::markdown::{find_testable_code, ErrorCodes};
diff --git a/src/librustdoc/passes/collect_trait_impls.rs b/src/librustdoc/passes/collect_trait_impls.rs
index c92cf9d3e80..9ac9941e521 100644
--- a/src/librustdoc/passes/collect_trait_impls.rs
+++ b/src/librustdoc/passes/collect_trait_impls.rs
@@ -1,6 +1,7 @@
 //! Collects trait impls for each item in the crate. For example, if a crate
 //! defines a struct that implements a trait, this pass will note that the
 //! struct implements that trait.
+
 use super::Pass;
 use crate::clean::*;
 use crate::core::DocContext;
diff --git a/src/librustdoc/passes/lint/check_code_block_syntax.rs b/src/librustdoc/passes/lint/check_code_block_syntax.rs
index c185442fd55..afeb7111e15 100644
--- a/src/librustdoc/passes/lint/check_code_block_syntax.rs
+++ b/src/librustdoc/passes/lint/check_code_block_syntax.rs
@@ -1,4 +1,5 @@
 //! Validates syntax inside Rust code blocks (\`\`\`rust).
+
 use rustc_data_structures::sync::{Lock, Lrc};
 use rustc_errors::{
     emitter::Emitter,
diff --git a/src/librustdoc/passes/lint/html_tags.rs b/src/librustdoc/passes/lint/html_tags.rs
index 25b0c61b826..a0064a90112 100644
--- a/src/librustdoc/passes/lint/html_tags.rs
+++ b/src/librustdoc/passes/lint/html_tags.rs
@@ -1,4 +1,5 @@
 //! Detects invalid HTML (like an unclosed `<span>`) in doc comments.
+
 use crate::clean::*;
 use crate::core::DocContext;
 use crate::html::markdown::main_body_opts;
diff --git a/src/librustdoc/passes/propagate_doc_cfg.rs b/src/librustdoc/passes/propagate_doc_cfg.rs
index 95273a225a9..8de7f2379b4 100644
--- a/src/librustdoc/passes/propagate_doc_cfg.rs
+++ b/src/librustdoc/passes/propagate_doc_cfg.rs
@@ -1,4 +1,5 @@
 //! Propagates [`#[doc(cfg(...))]`](https://github.com/rust-lang/rust/issues/43781) to child items.
+
 use std::sync::Arc;
 
 use crate::clean::cfg::Cfg;
diff --git a/src/librustdoc/passes/strip_priv_imports.rs b/src/librustdoc/passes/strip_priv_imports.rs
index 468712ba3d0..7b05756ae21 100644
--- a/src/librustdoc/passes/strip_priv_imports.rs
+++ b/src/librustdoc/passes/strip_priv_imports.rs
@@ -1,5 +1,6 @@
 //! Strips all private import statements (use, extern crate) from a
 //! crate.
+
 use crate::clean;
 use crate::core::DocContext;
 use crate::fold::DocFolder;
diff --git a/src/librustdoc/passes/strip_private.rs b/src/librustdoc/passes/strip_private.rs
index 3b6f484fde6..1bafa450be9 100644
--- a/src/librustdoc/passes/strip_private.rs
+++ b/src/librustdoc/passes/strip_private.rs
@@ -1,5 +1,6 @@
 //! Strip all private items from the output. Additionally implies strip_priv_imports.
 //! Basically, the goal is to remove items that are not relevant for public documentation.
+
 use crate::clean::{self, ItemIdSet};
 use crate::core::DocContext;
 use crate::fold::DocFolder;
diff --git a/src/librustdoc/passes/stripper.rs b/src/librustdoc/passes/stripper.rs
index 1bea93c7842..1cf80a0d80c 100644
--- a/src/librustdoc/passes/stripper.rs
+++ b/src/librustdoc/passes/stripper.rs
@@ -1,4 +1,5 @@
 //! A collection of utility functions for the `strip_*` passes.
+
 use rustc_hir::def_id::DefId;
 use rustc_middle::ty::{TyCtxt, Visibility};
 use std::mem;
diff --git a/src/tools/tidy/src/ui_tests.rs b/src/tools/tidy/src/ui_tests.rs
index f2eeda339d8..95857502108 100644
--- a/src/tools/tidy/src/ui_tests.rs
+++ b/src/tools/tidy/src/ui_tests.rs
@@ -1,6 +1,7 @@
 //! Tidy check to ensure below in UI test directories:
 //! - the number of entries in each directory must be less than `ENTRY_LIMIT`
 //! - there are no stray `.stderr` files
+
 use ignore::Walk;
 use std::collections::{BTreeSet, HashMap};
 use std::ffi::OsStr;