--- a/Tools__NewSystemBrowser.st	Tue May 03 15:50:34 2016 +0200
+++ b/Tools__NewSystemBrowser.st	Tue May 03 15:52:21 2016 +0200
@@ -21883,7 +21883,7 @@
     s := self codeView selectionAsString.
     tree := Parser parseExpression:s onError:[nil].
     tree isNil ifTrue:[^ false].
-    tree isConstant ifFalse:[^ false].
+    tree isLiteral ifFalse:[^ false].
     ^ true
 
     "Created: / 23-07-2011 / 12:28:46 / cg"