--- a/AbstractSourceFileWriter.st	Wed Nov 18 13:15:44 2015 +0100
+++ b/AbstractSourceFileWriter.st	Wed Nov 18 13:15:46 2015 +0100
@@ -49,6 +49,12 @@
 "
 ! !
 
+!AbstractSourceFileWriter class methodsFor:'queries'!
+
+isAbstract
+    ^ self == AbstractSourceFileWriter
+! !
+
 !AbstractSourceFileWriter class methodsFor:'signal constants'!
 
 methodSourceRewriteQuery
@@ -223,11 +229,11 @@
 !AbstractSourceFileWriter class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic/AbstractSourceFileWriter.st,v 1.12 2015-01-28 17:02:47 cg Exp $'
+    ^ '$Header$'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libbasic/AbstractSourceFileWriter.st,v 1.12 2015-01-28 17:02:47 cg Exp $'
+    ^ '$Header$'
 !
 
 version_SVN