Auto merge of #75120 - JulianKnodt:rm_reps, r=oli-obk

rust_ast::ast => rustc_ast

Rework of #71199 which is a rework #70621

Still working on this but just made the PR to track progress

r? @Dylan-DPC

clippy_lints/src/attrs.rs

@@ -5,7 +5,7 @@ use crate::utils::{
     span_lint_and_sugg, span_lint_and_then, without_block_comments,
 };
 use if_chain::if_chain;
-use rustc_ast::ast::{AttrKind, AttrStyle, Attribute, Lit, LitKind, MetaItemKind, NestedMetaItem};
+use rustc_ast::{AttrKind, AttrStyle, Attribute, Lit, LitKind, MetaItemKind, NestedMetaItem};
 use rustc_ast::util::lev_distance::find_best_match_for_name;
 use rustc_errors::Applicability;
 use rustc_hir::{
@@ -570,7 +570,7 @@ declare_lint_pass!(EarlyAttributes => [
 ]);
 
 impl EarlyLintPass for EarlyAttributes {
-    fn check_item(&mut self, cx: &EarlyContext<'_>, item: &rustc_ast::ast::Item) {
+    fn check_item(&mut self, cx: &EarlyContext<'_>, item: &rustc_ast::Item) {
         check_empty_line_after_outer_attr(cx, item);
     }
 
@@ -580,7 +580,7 @@ impl EarlyLintPass for EarlyAttributes {
     }
 }
 
-fn check_empty_line_after_outer_attr(cx: &EarlyContext<'_>, item: &rustc_ast::ast::Item) {
+fn check_empty_line_after_outer_attr(cx: &EarlyContext<'_>, item: &rustc_ast::Item) {
     for attr in &item.attrs {
         let attr_item = if let AttrKind::Normal(ref attr) = attr.kind {
             attr

clippy_lints/src/lib.rs

@@ -339,7 +339,7 @@ pub fn register_pre_expansion_lints(store: &mut rustc_lint::LintStore) {
 }
 
 #[doc(hidden)]
-pub fn read_conf(args: &[rustc_ast::ast::NestedMetaItem], sess: &Session) -> Conf {
+pub fn read_conf(args: &[rustc_ast::NestedMetaItem], sess: &Session) -> Conf {
     use std::path::Path;
     match utils::conf::file_from_args(args) {
         Ok(file_name) => {

clippy_lints/src/single_component_path_imports.rs

@@ -1,6 +1,6 @@
 use crate::utils::{in_macro, span_lint_and_sugg};
 use if_chain::if_chain;
-use rustc_ast::ast::{Item, ItemKind, UseTreeKind};
+use rustc_ast::{Item, ItemKind, UseTreeKind};
 use rustc_errors::Applicability;
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};

clippy_lints/src/strings.rs

@@ -161,7 +161,7 @@ declare_lint_pass!(StringLitAsBytes => [STRING_LIT_AS_BYTES]);
 impl<'tcx> LateLintPass<'tcx> for StringLitAsBytes {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) {
         use crate::utils::{snippet, snippet_with_applicability};
-        use rustc_ast::ast::LitKind;
+        use rustc_ast::LitKind;
 
         if_chain! {
             if let ExprKind::MethodCall(path, _, args, _) = &e.kind;

clippy_lints/src/transmute.rs

@@ -3,7 +3,7 @@ use crate::utils::{
     span_lint_and_then, sugg,
 };
 use if_chain::if_chain;
-use rustc_ast::ast;
+use rustc_ast as ast;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind, GenericArg, Mutability, QPath, TyKind, UnOp};
 use rustc_lint::{LateContext, LateLintPass};

clippy_lints/src/transmuting_null.rs

@@ -1,7 +1,7 @@
 use crate::consts::{constant_context, Constant};
 use crate::utils::{match_qpath, paths, span_lint};
 use if_chain::if_chain;
-use rustc_ast::ast::LitKind;
+use rustc_ast::LitKind;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::lint::in_external_macro;

clippy_lints/src/types.rs

@@ -5,7 +5,7 @@ use std::cmp::Ordering;
 use std::collections::BTreeMap;
 
 use if_chain::if_chain;
-use rustc_ast::ast::{FloatTy, IntTy, LitFloatType, LitIntType, LitKind, UintTy};
+use rustc_ast::{FloatTy, IntTy, LitFloatType, LitIntType, LitKind, UintTy};
 use rustc_errors::{Applicability, DiagnosticBuilder};
 use rustc_hir as hir;
 use rustc_hir::intravisit::{walk_body, walk_expr, walk_ty, FnKind, NestedVisitorMap, Visitor};

clippy_lints/src/unnested_or_patterns.rs

@@ -2,7 +2,7 @@
 
 use crate::utils::ast_utils::{eq_field_pat, eq_id, eq_pat, eq_path};
 use crate::utils::{over, span_lint_and_then};
-use rustc_ast::ast::{self, Pat, PatKind, PatKind::*, DUMMY_NODE_ID};
+use rustc_ast::{self as ast, Pat, PatKind, PatKind::*, DUMMY_NODE_ID};
 use rustc_ast::mut_visit::*;
 use rustc_ast::ptr::P;
 use rustc_ast_pretty::pprust;

clippy_lints/src/utils/ast_utils.rs

@@ -5,7 +5,7 @@
 #![allow(clippy::similar_names, clippy::wildcard_imports, clippy::enum_glob_use)]
 
 use crate::utils::{both, over};
-use rustc_ast::ast::{self, *};
+use rustc_ast::{self as ast, *};
 use rustc_ast::ptr::P;
 use rustc_span::symbol::Ident;
 use std::mem;

clippy_lints/src/vec_resize_to_zero.rs

@@ -7,7 +7,7 @@ use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::source_map::Spanned;
 
 use crate::utils::{match_def_path, paths};
-use rustc_ast::ast::LitKind;
+use rustc_ast::LitKind;
 use rustc_hir as hir;
 
 declare_clippy_lint! {