From fc497f79b3a60e23da08680d66e6cfc00a716bcc Mon Sep 17 00:00:00 2001
From: Amanieu d'Antras <amanieu@gmail.com>
Date: Tue, 26 May 2020 22:44:43 +0100
Subject: [PATCH] Add Span to arena_types! for decoding &'tcx [Span]

---
 src/librustc_middle/arena.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/librustc_middle/arena.rs b/src/librustc_middle/arena.rs
index 9b9207312e8..d5212ec5c30 100644
--- a/src/librustc_middle/arena.rs
+++ b/src/librustc_middle/arena.rs
@@ -82,6 +82,8 @@ macro_rules! arena_types {
             // (during lowering) and the `librustc_middle` arena (for decoding MIR)
             [decode] asm_template: rustc_ast::ast::InlineAsmTemplatePiece,
 
+            // This is used to decode the &'tcx [Span] for InlineAsm's line_spans.
+            [decode] span: rustc_span::Span,
         ], $tcx);
     )
 }