compiler: Replace rustc_target with _abi in _borrowck

Cargo.lock

@@ -3346,6 +3346,7 @@ dependencies = [
  "either",
  "itertools",
  "polonius-engine",
+ "rustc_abi",
  "rustc_data_structures",
  "rustc_errors",
  "rustc_fluent_macro",
@@ -3359,7 +3360,6 @@ dependencies = [
  "rustc_mir_dataflow",
  "rustc_session",
  "rustc_span",
- "rustc_target",
  "rustc_trait_selection",
  "rustc_traits",
  "smallvec",

compiler/rustc_borrowck/Cargo.toml

@@ -8,6 +8,7 @@ edition = "2021"
 either = "1.5.0"
 itertools = "0.12"
 polonius-engine = "0.13.0"
+rustc_abi = { path = "../rustc_abi" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
 rustc_fluent_macro = { path = "../rustc_fluent_macro" }
@@ -21,7 +22,6 @@ rustc_middle = { path = "../rustc_middle" }
 rustc_mir_dataflow = { path = "../rustc_mir_dataflow" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
-rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 rustc_traits = { path = "../rustc_traits" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }

compiler/rustc_borrowck/src/diagnostics/mod.rs

@@ -1,5 +1,6 @@
 //! Borrow checker diagnostics.
 
+use rustc_abi::{FieldIdx, VariantIdx};
 use rustc_errors::{Applicability, Diag, MultiSpan};
 use rustc_hir::def::{CtorKind, Namespace};
 use rustc_hir::{self as hir, CoroutineKind, LangItem};
@@ -21,7 +22,6 @@
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::sym;
 use rustc_span::{DUMMY_SP, Span, Symbol};
-use rustc_target::abi::{FieldIdx, VariantIdx};
 use rustc_trait_selection::error_reporting::InferCtxtErrorExt;
 use rustc_trait_selection::infer::InferCtxtExt;
 use rustc_trait_selection::traits::{

compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs

@@ -4,6 +4,7 @@
 use core::ops::ControlFlow;
 
 use hir::{ExprKind, Param};
+use rustc_abi::FieldIdx;
 use rustc_errors::{Applicability, Diag};
 use rustc_hir::intravisit::Visitor;
 use rustc_hir::{self as hir, BindingMode, ByRef, Node};
@@ -16,7 +17,6 @@
 use rustc_middle::ty::{self, InstanceKind, Ty, TyCtxt, Upcast};
 use rustc_span::symbol::{Symbol, kw};
 use rustc_span::{BytePos, DesugaringKind, Span, sym};
-use rustc_target::abi::FieldIdx;
 use rustc_trait_selection::error_reporting::InferCtxtErrorExt;
 use rustc_trait_selection::infer::InferCtxtExt;
 use rustc_trait_selection::traits;

compiler/rustc_borrowck/src/diagnostics/region_errors.rs

@@ -1103,7 +1103,7 @@ fn suggest_deref_closure_return(&self, diag: &mut Diag<'_>) {
                 peeled_ty,
                 liberated_sig.c_variadic,
                 hir::Safety::Safe,
-                rustc_target::spec::abi::Abi::Rust,
+                rustc_abi::ExternAbi::Rust,
             )),
         );
         let closure_ty = Ty::new_closure(

compiler/rustc_borrowck/src/lib.rs

@@ -21,6 +21,7 @@
 use std::ops::Deref;
 
 use consumers::{BodyWithBorrowckFacts, ConsumerOptions};
+use rustc_abi::FieldIdx;
 use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
 use rustc_data_structures::graph::dominators::Dominators;
 use rustc_errors::Diag;
@@ -45,7 +46,6 @@
 };
 use rustc_session::lint::builtin::UNUSED_MUT;
 use rustc_span::{Span, Symbol};
-use rustc_target::abi::FieldIdx;
 use smallvec::SmallVec;
 use tracing::{debug, instrument};
 

compiler/rustc_borrowck/src/path_utils.rs

@@ -1,7 +1,7 @@
+use rustc_abi::FieldIdx;
 use rustc_data_structures::graph::dominators::Dominators;
 use rustc_middle::mir::{BasicBlock, Body, BorrowKind, Location, Place, PlaceRef, ProjectionElem};
 use rustc_middle::ty::TyCtxt;
-use rustc_target::abi::FieldIdx;
 use tracing::debug;
 
 use crate::borrow_set::{BorrowData, BorrowSet, TwoPhaseActivation};

compiler/rustc_borrowck/src/type_check/mod.rs

@@ -4,6 +4,7 @@
 use std::{fmt, iter, mem};
 
 use either::Either;
+use rustc_abi::{FIRST_VARIANT, FieldIdx};
 use rustc_data_structures::frozen::Frozen;
 use rustc_data_structures::fx::{FxIndexMap, FxIndexSet};
 use rustc_errors::ErrorGuaranteed;
@@ -40,7 +41,6 @@
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::sym;
 use rustc_span::{DUMMY_SP, Span};
-use rustc_target::abi::{FIRST_VARIANT, FieldIdx};
 use rustc_trait_selection::traits::query::type_op::custom::{
     CustomTypeOp, scrape_region_constraints,
 };