From a42db7dbfd6ffdcc0c60246d688dc09376c2a1ef Mon Sep 17 00:00:00 2001
From: Josh Stone <jistone@redhat.com>
Date: Fri, 20 Apr 2018 11:37:41 -0700
Subject: [PATCH] Add a stopgap for #49889

---
 src/librustc/ty/sty.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/librustc/ty/sty.rs b/src/librustc/ty/sty.rs
index 310fcbcfcb37..320191167beb 100644
--- a/src/librustc/ty/sty.rs
+++ b/src/librustc/ty/sty.rs
@@ -885,8 +885,10 @@ impl<'a, 'gcx, 'tcx> ParamTy {
     }
 
     pub fn is_self(&self) -> bool {
-        if self.name == keywords::SelfType.name().as_str() {
-            assert_eq!(self.idx, 0);
+        // FIXME(#50125): Ignoring `Self` with `idx != 0` might lead to weird behavior elsewhere,
+        // but this should only be possible when using `-Z continue-parse-after-error` like
+        // `compile-fail/issue-36638.rs`.
+        if self.name == keywords::SelfType.name().as_str() && self.idx == 0 {
             true
         } else {
             false