Auto merge of rust-lang#11095 - Alexendoo:rustfmt-imports, r=Manishearth

Add `imports_granularity = "Module"` to rustfmt.toml

This lets rustfmt split/merge imports, `Module` seems to be the most common style in clippy

https://rust-lang.github.io/rustfmt/?version=v1.6.0&search=#imports_granularity

changelog: none

Almost all the updates other than the config file change are from `cargo dev fmt` or blessed tests, the exceptions being

- `tests/ui/single_component_path_imports.rs`
- `tests/ui/single_component_path_imports_nested_first.rs`
- `tests/ui/single_component_path_imports_self_after.rs`
- `tests/ui/single_component_path_imports_self_before.rs`
- `tests/ui/unsafe_removed_from_name.rs` (added a test with merged imports as a drive by)
- `tests/ui/wildcard_imports.rs`
- `tests/ui/wildcard_imports_2021.rs`

Author: bors

clippy_lints/src/allow_attributes.rs

@@ -1,5 +1,6 @@
 use ast::{AttrStyle, Attribute};
-use clippy_utils::{diagnostics::span_lint_and_sugg, is_from_proc_macro};
+use clippy_utils::diagnostics::span_lint_and_sugg;
+use clippy_utils::is_from_proc_macro;
 use rustc_ast as ast;
 use rustc_errors::Applicability;
 use rustc_lint::{LateContext, LateLintPass, LintContext};

clippy_lints/src/arc_with_non_send_sync.rs

@@ -2,8 +2,7 @@ use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::last_path_segment;
 use clippy_utils::ty::{implements_trait, is_type_diagnostic_item};
 use rustc_hir::{Expr, ExprKind};
-use rustc_lint::LateContext;
-use rustc_lint::LateLintPass;
+use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty;
 use rustc_middle::ty::print::with_forced_trimmed_paths;
 use rustc_middle::ty::GenericArgKind;

clippy_lints/src/attrs.rs

@@ -1,12 +1,10 @@
 //! checks for attributes
 
+use clippy_utils::diagnostics::{span_lint, span_lint_and_help, span_lint_and_sugg, span_lint_and_then};
+use clippy_utils::is_from_proc_macro;
 use clippy_utils::macros::{is_panic, macro_backtrace};
 use clippy_utils::msrvs::{self, Msrv};
 use clippy_utils::source::{first_line_of_span, is_present_in_source, snippet_opt, without_block_comments};
-use clippy_utils::{
-    diagnostics::{span_lint, span_lint_and_help, span_lint_and_sugg, span_lint_and_then},
-    is_from_proc_macro,
-};
 use if_chain::if_chain;
 use rustc_ast::{AttrKind, AttrStyle, Attribute, LitKind, MetaItemKind, MetaItemLit, NestedMetaItem};
 use rustc_errors::Applicability;

clippy_lints/src/blocks_in_if_conditions.rs

@@ -1,9 +1,8 @@
 use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg};
-use clippy_utils::get_parent_expr;
-use clippy_utils::higher;
 use clippy_utils::source::snippet_block_with_applicability;
 use clippy_utils::ty::implements_trait;
 use clippy_utils::visitors::{for_each_expr, Descend};
+use clippy_utils::{get_parent_expr, higher};
 use core::ops::ControlFlow;
 use if_chain::if_chain;
 use rustc_errors::Applicability;

clippy_lints/src/bool_to_int_with_if.rs

@@ -4,7 +4,9 @@ use rustc_hir::{Block, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
-use clippy_utils::{diagnostics::span_lint_and_then, in_constant, is_else_clause, is_integer_literal, sugg::Sugg};
+use clippy_utils::diagnostics::span_lint_and_then;
+use clippy_utils::sugg::Sugg;
+use clippy_utils::{in_constant, is_else_clause, is_integer_literal};
 use rustc_errors::Applicability;
 
 declare_clippy_lint! {

clippy_lints/src/borrow_deref_ref.rs

@@ -1,9 +1,8 @@
 use crate::reference::DEREF_ADDROF;
 use clippy_utils::diagnostics::span_lint_and_then;
-use clippy_utils::is_from_proc_macro;
 use clippy_utils::source::snippet_opt;
 use clippy_utils::ty::implements_trait;
-use clippy_utils::{get_parent_expr, is_lint_allowed};
+use clippy_utils::{get_parent_expr, is_from_proc_macro, is_lint_allowed};
 use rustc_errors::Applicability;
 use rustc_hir::{ExprKind, UnOp};
 use rustc_lint::{LateContext, LateLintPass};

clippy_lints/src/box_default.rs

@@ -1,12 +1,10 @@
-use clippy_utils::{
-    diagnostics::span_lint_and_sugg, get_parent_node, is_default_equivalent, macros::macro_backtrace, match_path,
-    path_def_id, paths, ty::expr_sig,
-};
+use clippy_utils::diagnostics::span_lint_and_sugg;
+use clippy_utils::macros::macro_backtrace;
+use clippy_utils::ty::expr_sig;
+use clippy_utils::{get_parent_node, is_default_equivalent, match_path, path_def_id, paths};
 use rustc_errors::Applicability;
-use rustc_hir::{
-    intravisit::{walk_ty, Visitor},
-    Block, Expr, ExprKind, Local, Node, QPath, TyKind,
-};
+use rustc_hir::intravisit::{walk_ty, Visitor};
+use rustc_hir::{Block, Expr, ExprKind, Local, Node, QPath, TyKind};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty::print::with_forced_trimmed_paths;

clippy_lints/src/casts/as_ptr_cast_mut.rs

@@ -3,10 +3,8 @@ use clippy_utils::source::snippet_opt;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::LateContext;
-use rustc_middle::{
-    mir::Mutability,
-    ty::{self, Ty, TypeAndMut},
-};
+use rustc_middle::mir::Mutability;
+use rustc_middle::ty::{self, Ty, TypeAndMut};
 
 use super::AS_PTR_CAST_MUT;
 

clippy_lints/src/casts/cast_slice_different_sizes.rs

@@ -1,10 +1,12 @@
+use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::msrvs::{self, Msrv};
-use clippy_utils::{diagnostics::span_lint_and_then, source};
+use clippy_utils::source;
 use if_chain::if_chain;
 use rustc_ast::Mutability;
 use rustc_hir::{Expr, ExprKind, Node};
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, layout::LayoutOf, Ty, TypeAndMut};
+use rustc_middle::ty::layout::LayoutOf;
+use rustc_middle::ty::{self, Ty, TypeAndMut};
 
 use super::CAST_SLICE_DIFFERENT_SIZES;
 

clippy_lints/src/casts/cast_slice_from_raw_parts.rs

@@ -4,7 +4,8 @@ use clippy_utils::source::snippet_with_context;
 use clippy_utils::{match_def_path, paths};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
-use rustc_hir::{def_id::DefId, Expr, ExprKind};
+use rustc_hir::def_id::DefId;
+use rustc_hir::{Expr, ExprKind};
 use rustc_lint::LateContext;
 use rustc_middle::ty::{self, Ty};