Auto merge of #125443 - nnethercote:rustfmt-use-decls, r=lcnr,cuviper,GuillaumeGomez

rustfmt `use` declarations

This PR implements https://github.com/rust-lang/compiler-team/issues/750, which changes how `use` declarations are formatted by adding these options to `rustfmt.toml`:
```
group_imports = "StdExternalCrate"
imports_granularity = "Module"
```

r? `@ghost`

1 files changed, 7 insertions, 11 deletions

diff --git a/compiler/rustc_fluent_macro/src/fluent.rs b/compiler/rustc_fluent_macro/src/fluent.rs
index 68fdabd3529..23795a96b92 100644
--- a/compiler/rustc_fluent_macro/src/fluent.rs
+++ b/compiler/rustc_fluent_macro/src/fluent.rs
@@ -1,20 +1,16 @@
+use std::collections::{HashMap, HashSet};
+use std::fs::read_to_string;
+use std::path::{Path, PathBuf};
+
 use annotate_snippets::{Annotation, AnnotationType, Renderer, Slice, Snippet, SourceAnnotation};
 use fluent_bundle::{FluentBundle, FluentError, FluentResource};
-use fluent_syntax::{
-    ast::{
-        Attribute, Entry, Expression, Identifier, InlineExpression, Message, Pattern,
-        PatternElement,
-    },
-    parser::ParserError,
+use fluent_syntax::ast::{
+    Attribute, Entry, Expression, Identifier, InlineExpression, Message, Pattern, PatternElement,
 };
+use fluent_syntax::parser::ParserError;
 use proc_macro::{Diagnostic, Level, Span};
 use proc_macro2::TokenStream;
 use quote::quote;
-use std::{
-    collections::{HashMap, HashSet},
-    fs::read_to_string,
-    path::{Path, PathBuf},
-};
 use syn::{parse_macro_input, Ident, LitStr};
 use unic_langid::langid;