chore: use rustfmt imports_granularity option (#17421)

Closes https://github.com/denoland/deno/issues/2699
Closes https://github.com/denoland/deno/issues/2347

Uses unstable rustfmt features. Since dprint invokes `rustfmt` we do not
need to switch the cargo toolchain to nightly. Do we care about
formatting stability of our codebase across Rust versions? (I don't)

ops/attrs.rs

@@ -1,9 +1,11 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
-use syn::{
-  parse::{Parse, ParseStream},
-  punctuated::Punctuated,
-  Error, Ident, Result, Token,
-};
+use syn::parse::Parse;
+use syn::parse::ParseStream;
+use syn::punctuated::Punctuated;
+use syn::Error;
+use syn::Ident;
+use syn::Result;
+use syn::Token;
 
 #[derive(Copy, Clone, Debug, Default)]
 pub struct Attributes {

ops/deno.rs

@@ -1,8 +1,10 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 #![cfg(not(test))]
 
-use proc_macro2::{Span, TokenStream};
-use proc_macro_crate::{crate_name, FoundCrate};
+use proc_macro2::Span;
+use proc_macro2::TokenStream;
+use proc_macro_crate::crate_name;
+use proc_macro_crate::FoundCrate;
 use quote::quote;
 use syn::Ident;
 

ops/fast_call.rs

@@ -1,13 +1,25 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 //! Code generation for V8 fast calls.
 
-use pmutil::{q, Quote, ToTokensExt};
-use proc_macro2::{Span, TokenStream};
+use pmutil::q;
+use pmutil::Quote;
+use pmutil::ToTokensExt;
+use proc_macro2::Span;
+use proc_macro2::TokenStream;
 use quote::quote;
-use syn::{
-  parse_quote, punctuated::Punctuated, token::Comma, GenericParam, Generics,
-  Ident, ItemFn, ItemImpl, Path, PathArguments, PathSegment, Type, TypePath,
-};
+use syn::parse_quote;
+use syn::punctuated::Punctuated;
+use syn::token::Comma;
+use syn::GenericParam;
+use syn::Generics;
+use syn::Ident;
+use syn::ItemFn;
+use syn::ItemImpl;
+use syn::Path;
+use syn::PathArguments;
+use syn::PathSegment;
+use syn::Type;
+use syn::TypePath;
 
 use crate::optimizer::FastValue;
 use crate::optimizer::Optimizer;

ops/lib.rs

@@ -2,15 +2,24 @@
 
 use attrs::Attributes;
 use once_cell::sync::Lazy;
-use optimizer::{BailoutReason, Optimizer};
+use optimizer::BailoutReason;
+use optimizer::Optimizer;
 use proc_macro::TokenStream;
-use proc_macro2::{Span, TokenStream as TokenStream2};
-use quote::{quote, ToTokens};
+use proc_macro2::Span;
+use proc_macro2::TokenStream as TokenStream2;
+use quote::quote;
+use quote::ToTokens;
 use regex::Regex;
-use syn::{
-  parse, parse_macro_input, punctuated::Punctuated, token::Comma, FnArg,
-  GenericParam, Ident, ItemFn, Lifetime, LifetimeDef,
-};
+use syn::parse;
+use syn::parse_macro_input;
+use syn::punctuated::Punctuated;
+use syn::token::Comma;
+use syn::FnArg;
+use syn::GenericParam;
+use syn::Ident;
+use syn::ItemFn;
+use syn::Lifetime;
+use syn::LifetimeDef;
 
 mod attrs;
 mod deno;
@@ -747,7 +756,8 @@ fn exclude_lifetime_params(
 
 #[cfg(test)]
 mod tests {
-  use crate::{Attributes, Op};
+  use crate::Attributes;
+  use crate::Op;
   use std::path::PathBuf;
 
   #[testing_macros::fixture("optimizer_tests/**/*.rs")]

ops/optimizer.rs

@@ -5,15 +5,28 @@ use std::collections::BTreeMap;
 use std::fmt::Debug;
 use std::fmt::Formatter;
 
-use pmutil::{q, Quote};
+use pmutil::q;
+use pmutil::Quote;
 use proc_macro2::TokenStream;
 
-use syn::{
-  parse_quote, punctuated::Punctuated, token::Colon2,
-  AngleBracketedGenericArguments, FnArg, GenericArgument, PatType, Path,
-  PathArguments, PathSegment, ReturnType, Signature, Type, TypePath, TypePtr,
-  TypeReference, TypeSlice, TypeTuple,
-};
+use syn::parse_quote;
+use syn::punctuated::Punctuated;
+use syn::token::Colon2;
+use syn::AngleBracketedGenericArguments;
+use syn::FnArg;
+use syn::GenericArgument;
+use syn::PatType;
+use syn::Path;
+use syn::PathArguments;
+use syn::PathSegment;
+use syn::ReturnType;
+use syn::Signature;
+use syn::Type;
+use syn::TypePath;
+use syn::TypePtr;
+use syn::TypeReference;
+use syn::TypeSlice;
+use syn::TypeTuple;
 
 use crate::Op;
 
@@ -678,7 +691,8 @@ fn double_segment(
 #[cfg(test)]
 mod tests {
   use super::*;
-  use crate::{Attributes, Op};
+  use crate::Attributes;
+  use crate::Op;
   use std::path::PathBuf;
   use syn::parse_quote;