From 2112492ec908019d1515128c68f1c737518cac3c Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Wed, 15 Jan 2014 14:01:16 +0100
Subject: Avoid stale symbol errors for package objects

Happened (albeit non-deterministally) when compiling parsing/*.scala
---
 src/dotty/tools/dotc/core/SymDenotations.scala | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/dotty/tools/dotc/core/SymDenotations.scala')

diff --git a/src/dotty/tools/dotc/core/SymDenotations.scala b/src/dotty/tools/dotc/core/SymDenotations.scala
index 7eea9fd64..8f7725fbe 100644
--- a/src/dotty/tools/dotc/core/SymDenotations.scala
+++ b/src/dotty/tools/dotc/core/SymDenotations.scala
@@ -912,7 +912,10 @@ object SymDenotations {
       }
       if (this is PackageClass) { // replace existing symbols
         val entry = mscope.lookupEntry(sym.name)
-        if (entry != null) mscope.unlink(entry)
+        if (entry != null) {
+          mscope.unlink(entry)
+          entry.sym.denot = sym.denot // to avoid stale symbols
+        }
       }
       mscope.enter(sym)
 
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