Fix some use items that import more than necessary.

Author: nnethercote

compiler/rustc_middle/src/mir/terminator.rs

@@ -8,7 +8,7 @@ use rustc_hir::LangItem;
 use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable};
 use smallvec::{SmallVec, smallvec};
 
-use super::{TerminatorKind, *};
+use super::*;
 
 impl SwitchTargets {
     /// Creates switch targets from an iterator of values and target blocks.

compiler/rustc_middle/src/ty/mod.rs

@@ -47,7 +47,7 @@ pub use rustc_session::lint::RegisteredTools;
 use rustc_span::hygiene::MacroKind;
 use rustc_span::{ExpnId, ExpnKind, Ident, Span, Symbol, kw, sym};
 pub use rustc_type_ir::relate::VarianceDiagInfo;
-pub use rustc_type_ir::{Movability, Mutability, *};
+pub use rustc_type_ir::*;
 use tracing::{debug, instrument};
 pub use vtable::*;
 use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir};

compiler/rustc_mir_build/src/builder/matches/match_pair.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use rustc_middle::mir::*;
-use rustc_middle::thir::{self, *};
+use rustc_middle::thir::*;
 use rustc_middle::ty::{self, Ty, TypeVisitableExt};
 
 use crate::builder::Builder;
@@ -134,7 +134,7 @@ impl<'tcx> MatchPairTree<'tcx> {
             PatKind::Constant { value } => TestCase::Constant { value },
 
             PatKind::AscribeUserType {
-                ascription: thir::Ascription { ref annotation, variance },
+                ascription: Ascription { ref annotation, variance },
                 ref subpattern,
                 ..
             } => {