Reformat use declarations.

The previous commit updated `rustfmt.toml` appropriately. This commit is
the outcome of running `x fmt --all` with the new formatting options.

compiler/rustc_passes/src/lang_items.rs

@@ -7,23 +7,22 @@
 //! * Traits that represent operators; e.g., `Add`, `Sub`, `Index`.
 //! * Functions called by the compiler itself.
 
-use crate::errors::{
-    DuplicateLangItem, IncorrectTarget, LangItemOnIncorrectTarget, UnknownLangItem,
-};
-use crate::weak_lang_items;
-
 use rustc_ast as ast;
 use rustc_ast::visit;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::lang_items::{extract, GenericRequirement};
 use rustc_hir::{LangItem, LanguageItems, MethodKind, Target};
+use rustc_middle::query::Providers;
 use rustc_middle::ty::{ResolverAstLowering, TyCtxt};
 use rustc_session::cstore::ExternCrate;
 use rustc_span::symbol::kw::Empty;
 use rustc_span::Span;
 
-use rustc_middle::query::Providers;
+use crate::errors::{
+    DuplicateLangItem, IncorrectTarget, LangItemOnIncorrectTarget, UnknownLangItem,
+};
+use crate::weak_lang_items;
 
 pub(crate) enum Duplicate {
     Plain,