From 80eb08f5a1de98ebbec0e989928d665c7061c07c Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Tue, 5 Dec 2006 18:54:47 +0000
Subject: updated test files to avoid illegal null assign...

updated test files to avoid illegal null assignments
---
 test/files/neg/bug576.scala | 2 +-
 test/files/neg/bug591.scala | 4 ++--
 test/files/neg/bug712.scala | 2 +-
 test/files/pos/bug788.scala | 1 -
 4 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/test/files/neg/bug576.scala b/test/files/neg/bug576.scala
index 2d9cf01910..fd83217a45 100644
--- a/test/files/neg/bug576.scala
+++ b/test/files/neg/bug576.scala
@@ -9,7 +9,7 @@ trait PriorityTreeXXX extends BaseListXXX {
 	type Node <: BasicTreeNode;
 
   trait BasicTreeNode extends BaseNode {
-    def sibling: Node = null;
+    def sibling: Node;
     def insert(dir : Int, node : Node) = {
       if (true) sibling.insert(node);
       //else insert(node);
diff --git a/test/files/neg/bug591.scala b/test/files/neg/bug591.scala
index 94d8068bb3..0f0b02395c 100644
--- a/test/files/neg/bug591.scala
+++ b/test/files/neg/bug591.scala
@@ -32,8 +32,8 @@ trait BaseFlow extends BaseList {
   }
 
   trait BFNode extends BaseNode {
-    private var  input : Input  = null;
-    private var output : Output = null;
+    private var  input : Input  = _;
+    private var output : Output = _;
 
     def input_=(in : Input) = {}
 
diff --git a/test/files/neg/bug712.scala b/test/files/neg/bug712.scala
index 0887810c85..6f2627743f 100644
--- a/test/files/neg/bug712.scala
+++ b/test/files/neg/bug712.scala
@@ -14,6 +14,6 @@ trait B extends A {
     def scope : Int;
   }
   implicit def coerceSym(sym : Symbol) : SymbolImpl;
-  var s : Symbol = null;
+  var s : Symbol = _;
   val s_scope = s.scope;
 }
diff --git a/test/files/pos/bug788.scala b/test/files/pos/bug788.scala
index 23ffa4a52d..19638dd170 100644
--- a/test/files/pos/bug788.scala
+++ b/test/files/pos/bug788.scala
@@ -14,7 +14,6 @@ trait Test {
   def asExpression(e : ExpressionImpl) : Named = {
     e match {
     case f : NamedImpl => f.self;
-    case _ => null;
     }
   }
 }
-- 
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