Fix invalid jump to def link generated on derive attributes

Author: GuillaumeGomez

src/librustdoc/html/render/span_map.rs

@@ -7,7 +7,6 @@ use rustc_hir::intravisit::{self, Visitor, VisitorExt};
 use rustc_hir::{ExprKind,HirId,Item,ItemKind,Mod,Node,QPath};
 use rustc_middle::hir::nested_filter;
 use rustc_middle::ty::TyCtxt;
-use rustc_span::hygiene::MacroKind;
 use rustc_span::{BytePos,ExpnKind};
 
 usecrate::clean::{self,PrimitiveType, rustc_span};
@@ -194,7 +193,7 @@ impl SpanMapVisitor<'_> {
 }
 
 let macro_name = match data.kind{
-ExpnKind::Macro(MacroKind::Bang, macro_name) => macro_name,
+ExpnKind::Macro(_, macro_name) => macro_name,
 // Even though we don't handle this kind of macro, this `data` still comes from
 // expansion so we return `true` so we don't go any deeper in this code.
  _ => returntrue,

tests/rustdoc/jump-to-def-assoc-items.rs

@@ -26,6 +26,9 @@ impl C {
 pubfnwat(){}
 }
 
+//@ has - '//a[@href="{{channel}}/core/fmt/macros/macro.Debug.html"]' 'Debug'
+//@ has - '//a[@href="{{channel}}/core/cmp/macro.PartialEq.html"]' 'PartialEq'
+#[derive(Debug,PartialEq)]
 pubstructBar;
 implTraitforBar{
 typeT = Foo;