Rollup merge of rust-lang#78052 - da-x:path-trimming-type-aliases, r=…

…davidtwco path trimming: ignore type aliases Continuation of rust-lang#73996.
henryboisdequin · Jan 29, 2021 · 24d2e9a · 24d2e9a
2 parents 099f27b + 9dc0d1d
commit 24d2e9a
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Showing 70 changed files with 161 additions and 158 deletions.
diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs
@@ -2143,6 +2143,7 @@ fn for_each_def(tcx: TyCtxt<'_>, mut collect_fn: impl for<'b> FnMut(&'b Ident, N
 
             match child.res {
                 def::Res::Def(DefKind::AssocTy, _) => {}
+                def::Res::Def(DefKind::TyAlias, _) => {}
                 def::Res::Def(defkind, def_id) => {
                     if let Some(ns) = defkind.ns() {
                         collect_fn(&child.ident, ns, def_id);

diff --git a/...erwise_branch_68867.try_sum.EarlyOtherwiseBranch.before-SimplifyBranches-final.after.diff b/...erwise_branch_68867.try_sum.EarlyOtherwiseBranch.before-SimplifyBranches-final.after.diff
@@ -1,7 +1,7 @@
 - // MIR for `try_sum` before EarlyOtherwiseBranch
 + // MIR for `try_sum` after SimplifyBranches-final
 
-  fn try_sum(_1: &ViewportPercentageLength, _2: &ViewportPercentageLength) -> std::result::Result<ViewportPercentageLength, ()> {
+  fn try_sum(_1: &ViewportPercentageLength, _2: &ViewportPercentageLength) -> Result<ViewportPercentageLength, ()> {
       debug x => _1;                       // in scope 0 at $DIR/early_otherwise_branch_68867.rs:18:5: 18:6
       debug other => _2;                   // in scope 0 at $DIR/early_otherwise_branch_68867.rs:19:5: 19:10
       let mut _0: std::result::Result<ViewportPercentageLength, ()>; // return place in scope 0 at $DIR/early_otherwise_branch_68867.rs:20:6: 20:42

diff --git a/src/test/mir-opt/early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff b/src/test/mir-opt/early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff
@@ -1,7 +1,7 @@
 - // MIR for `try_sum` before EarlyOtherwiseBranch
 + // MIR for `try_sum` after EarlyOtherwiseBranch
 
-  fn try_sum(_1: &ViewportPercentageLength, _2: &ViewportPercentageLength) -> std::result::Result<ViewportPercentageLength, ()> {
+  fn try_sum(_1: &ViewportPercentageLength, _2: &ViewportPercentageLength) -> Result<ViewportPercentageLength, ()> {
       debug x => _1;                       // in scope 0 at $DIR/early_otherwise_branch_68867.rs:18:5: 18:6
       debug other => _2;                   // in scope 0 at $DIR/early_otherwise_branch_68867.rs:19:5: 19:10
       let mut _0: std::result::Result<ViewportPercentageLength, ()>; // return place in scope 0 at $DIR/early_otherwise_branch_68867.rs:20:6: 20:42

diff --git a/src/test/mir-opt/funky_arms.float_to_exponential_common.ConstProp.diff b/src/test/mir-opt/funky_arms.float_to_exponential_common.ConstProp.diff
@@ -1,7 +1,7 @@
 - // MIR for `float_to_exponential_common` before ConstProp
 + // MIR for `float_to_exponential_common` after ConstProp
 
-  fn float_to_exponential_common(_1: &mut Formatter, _2: &T, _3: bool) -> std::result::Result<(), std::fmt::Error> {
+  fn float_to_exponential_common(_1: &mut Formatter, _2: &T, _3: bool) -> Result<(), std::fmt::Error> {
       debug fmt => _1;                     // in scope 0 at $DIR/funky_arms.rs:11:35: 11:38
       debug num => _2;                     // in scope 0 at $DIR/funky_arms.rs:11:60: 11:63
       debug upper => _3;                   // in scope 0 at $DIR/funky_arms.rs:11:69: 11:74

diff --git a/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff b/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff
@@ -128,7 +128,7 @@
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar(<ZST>)) }
           StorageLive(_22);                // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _22 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _23) -> bb3; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _22 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _23) -> bb3; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }
@@ -158,7 +158,7 @@
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar(<ZST>)) }
           StorageLive(_25);                // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _25 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _26) -> bb5; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _25 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _26) -> bb5; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }

diff --git a/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff b/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff
@@ -128,7 +128,7 @@
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar(<ZST>)) }
           StorageLive(_22);                // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _22 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _23) -> bb3; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _22 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _23) -> bb3; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }
@@ -158,7 +158,7 @@
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar(<ZST>)) }
           StorageLive(_25);                // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _25 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _26) -> bb5; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _25 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _26) -> bb5; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }

diff --git a/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.32bit.diff b/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.32bit.diff
@@ -203,7 +203,7 @@
           StorageLive(_44);                // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageLive(_45);                // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           _45 = _38;                       // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _44 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _45) -> bb5; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _44 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _45) -> bb5; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }
@@ -252,7 +252,7 @@
           StorageLive(_48);                // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageLive(_49);                // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           _49 = _41;                       // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _48 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _49) -> bb7; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _48 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _49) -> bb7; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }

diff --git a/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.64bit.diff b/src/test/mir-opt/issue_73223.main.SimplifyArmIdentity.64bit.diff
@@ -203,7 +203,7 @@
           StorageLive(_44);                // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageLive(_45);                // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           _45 = _38;                       // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _44 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _45) -> bb5; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _44 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _45) -> bb5; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }
@@ -252,7 +252,7 @@
           StorageLive(_48);                // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           StorageLive(_49);                // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
           _49 = _41;                       // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
-          _48 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _49) -> bb7; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+          _48 = transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> Result<(), std::fmt::Error>>(move _49) -> bb7; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // mir::Constant
                                            // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
                                            // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute::<for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar(<ZST>)) }

diff --git a/src/test/mir-opt/simplify_arm.id_result.SimplifyArmIdentity.diff b/src/test/mir-opt/simplify_arm.id_result.SimplifyArmIdentity.diff
@@ -1,7 +1,7 @@
 - // MIR for `id_result` before SimplifyArmIdentity
 + // MIR for `id_result` after SimplifyArmIdentity
 
-  fn id_result(_1: std::result::Result<u8, i32>) -> std::result::Result<u8, i32> {
+  fn id_result(_1: Result<u8, i32>) -> Result<u8, i32> {
       debug r => _1;                       // in scope 0 at $DIR/simplify-arm.rs:16:14: 16:15
       let mut _0: std::result::Result<u8, i32>; // return place in scope 0 at $DIR/simplify-arm.rs:16:37: 16:52
       let mut _2: isize;                   // in scope 0 at $DIR/simplify-arm.rs:18:9: 18:14

diff --git a/src/test/mir-opt/simplify_arm.id_result.SimplifyBranchSame.diff b/src/test/mir-opt/simplify_arm.id_result.SimplifyBranchSame.diff
@@ -1,7 +1,7 @@
 - // MIR for `id_result` before SimplifyBranchSame
 + // MIR for `id_result` after SimplifyBranchSame
 
-  fn id_result(_1: std::result::Result<u8, i32>) -> std::result::Result<u8, i32> {
+  fn id_result(_1: Result<u8, i32>) -> Result<u8, i32> {
       debug r => _1;                       // in scope 0 at $DIR/simplify-arm.rs:16:14: 16:15
       let mut _0: std::result::Result<u8, i32>; // return place in scope 0 at $DIR/simplify-arm.rs:16:37: 16:52
       let mut _2: isize;                   // in scope 0 at $DIR/simplify-arm.rs:18:9: 18:14

diff --git a/src/test/mir-opt/simplify_arm.id_try.SimplifyArmIdentity.diff b/src/test/mir-opt/simplify_arm.id_try.SimplifyArmIdentity.diff
@@ -1,7 +1,7 @@
 - // MIR for `id_try` before SimplifyArmIdentity
 + // MIR for `id_try` after SimplifyArmIdentity
 
-  fn id_try(_1: std::result::Result<u8, i32>) -> std::result::Result<u8, i32> {
+  fn id_try(_1: Result<u8, i32>) -> Result<u8, i32> {
       debug r => _1;                       // in scope 0 at $DIR/simplify-arm.rs:23:11: 23:12
       let mut _0: std::result::Result<u8, i32>; // return place in scope 0 at $DIR/simplify-arm.rs:23:34: 23:49
       let _2: u8;                          // in scope 0 at $DIR/simplify-arm.rs:24:9: 24:10
@@ -26,7 +26,7 @@
 -                 debug t => _9;           // in scope 7 at $DIR/simplify-arm.rs:24:14: 24:15
 +                 debug t => ((_0 as Err).0: i32); // in scope 7 at $DIR/simplify-arm.rs:24:14: 24:15
               }
-              scope 8 (inlined <std::result::Result<u8, i32> as Try>::from_error) { // at $DIR/simplify-arm.rs:24:13: 24:15
+              scope 8 (inlined <Result<u8, i32> as Try>::from_error) { // at $DIR/simplify-arm.rs:24:13: 24:15
 -                 debug v => _8;           // in scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
 +                 debug v => ((_0 as Err).0: i32); // in scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
                   let mut _12: i32;        // in scope 8 at $DIR/simplify-arm.rs:24:13: 24:15
@@ -39,7 +39,7 @@
           scope 5 {
           }
       }
-      scope 6 (inlined <std::result::Result<u8, i32> as Try>::into_result) { // at $DIR/simplify-arm.rs:24:13: 24:15
+      scope 6 (inlined <Result<u8, i32> as Try>::into_result) { // at $DIR/simplify-arm.rs:24:13: 24:15
           debug self => _4;                // in scope 6 at $DIR/simplify-arm.rs:24:13: 24:15
       }