With Roger's <rogerl@netscape.com> new RegExp implementation Rhino passes:

js1_2/regexp/regress-9141.js
ecma_3/String/regress-104375.js

js/tests/rhino-n.tests

@@ -12,12 +12,9 @@ ecma_3/Function/scope-001.js
 ecma/Date/15.9.4.3.js
 #See bug number 94506 
 ecma_3/Function/regress-94506.js
-#See bug number 9141
-js1_2/regexp/regress-9141.js
-#See bug number 104375
-ecma_3/String/regress-104375.js
 #Verify error for bad branch 
 js1_5/Regress/regress-96526.js
+#
 # Unfixable bugs:
 #
 # JSObject not used for Rhino LiveConnect