Auto merge of #59522 - Centril:rollup, r=Centril

Rollup of 9 pull requests

Successful merges:

 - #59366 (Update books)
 - #59436 (Update jemalloc-sys to version 0.3.0)
 - #59454 (Update rustfmt to 1.2.0)
 - #59462 (Fix error in Rust 2018 + no_core environment)
 - #59467 (Better diagnostic for binary operation on BoxedValues)
 - #59473 (Do not emit incorrect borrow suggestion involving macros and fix overlapping multiline spans)
 - #59480 (Update stdsimd)
 - #59486 (Visit `ImplItem` in `dead_code` lint)
 - #59510 (Rename `type_parameters` to `generics` and so on)

Failed merges:

 - #59516 (Update cargo)

r? @ghost

2 files changed, 69 insertions, 9 deletions

diff --git a/src/libsyntax/test_snippet.rs b/src/libsyntax/test_snippet.rs
index 2b3d18835d5..86910ffd894 100644
--- a/src/libsyntax/test_snippet.rs
+++ b/src/libsyntax/test_snippet.rs
@@ -375,6 +375,66 @@ error: foo
 }
 
 #[test]
+fn triple_exact_overlap() {
+    test_harness(r#"
+fn foo() {
+  X0 Y0 Z0
+  X1 Y1 Z1
+  X2 Y2 Z2
+}
+"#,
+    vec![
+        SpanLabel {
+            start: Position {
+                string: "X0",
+                count: 1,
+            },
+            end: Position {
+                string: "X2",
+                count: 1,
+            },
+            label: "`X` is a good letter",
+        },
+        SpanLabel {
+            start: Position {
+                string: "X0",
+                count: 1,
+            },
+            end: Position {
+                string: "X2",
+                count: 1,
+            },
+            label: "`Y` is a good letter too",
+        },
+        SpanLabel {
+            start: Position {
+                string: "X0",
+                count: 1,
+            },
+            end: Position {
+                string: "X2",
+                count: 1,
+            },
+            label: "`Z` label",
+        },
+    ],
+    r#"
+error: foo
+ --> test.rs:3:3
+  |
+3 | /   X0 Y0 Z0
+4 | |   X1 Y1 Z1
+5 | |   X2 Y2 Z2
+  | |    ^
+  | |    |
+  | |    `X` is a good letter
+  | |____`Y` is a good letter too
+  |      `Z` label
+
+"#);
+}
+
+#[test]
 fn minimum_depth() {
     test_harness(r#"
 fn foo() {
diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index fbd6641f7c2..8f42d47e69c 100644
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -244,24 +244,24 @@ pub fn walk_item<'a, V: Visitor<'a>>(visitor: &mut V, item: &'a Item) {
             walk_list!(visitor, visit_foreign_item, &foreign_module.items);
         }
         ItemKind::GlobalAsm(ref ga) => visitor.visit_global_asm(ga),
-        ItemKind::Ty(ref typ, ref type_parameters) => {
+        ItemKind::Ty(ref typ, ref generics) => {
             visitor.visit_ty(typ);
-            visitor.visit_generics(type_parameters)
+            visitor.visit_generics(generics)
         }
-        ItemKind::Existential(ref bounds, ref type_parameters) => {
+        ItemKind::Existential(ref bounds, ref generics) => {
             walk_list!(visitor, visit_param_bound, bounds);
-            visitor.visit_generics(type_parameters)
+            visitor.visit_generics(generics)
         }
-        ItemKind::Enum(ref enum_definition, ref type_parameters) => {
-            visitor.visit_generics(type_parameters);
-            visitor.visit_enum_def(enum_definition, type_parameters, item.id, item.span)
+        ItemKind::Enum(ref enum_definition, ref generics) => {
+            visitor.visit_generics(generics);
+            visitor.visit_enum_def(enum_definition, generics, item.id, item.span)
         }
         ItemKind::Impl(_, _, _,
-                 ref type_parameters,
+                 ref generics,
                  ref opt_trait_reference,
                  ref typ,
                  ref impl_items) => {
-            visitor.visit_generics(type_parameters);
+            visitor.visit_generics(generics);
             walk_list!(visitor, visit_trait_ref, opt_trait_reference);
             visitor.visit_ty(typ);
             walk_list!(visitor, visit_impl_item, impl_items);