Fixing AIX/BeOS bustage. The statically determined length of the string was |0|, and on these ports, that was erroneously considered a candidate for conversion to a pointer, which made selection of the appropriate constructor for |nsDependentString| ambiguous ... go figure.

js/src/xpconnect/src/xpcconvert.cpp

@@ -534,7 +534,7 @@ XPCConvert::JSData2Native(XPCCallContext& ccx, void* d, jsval s,
         case nsXPTType::T_DOMSTRING:
         {
             static const PRUnichar sEmptyStringTerminator = 0;
-            static const nsDependentString sEmptyString(&sEmptyStringTerminator, 0);
+            static const nsDependentString sEmptyString(&sEmptyStringTerminator, &sEmptyStringTerminator);
 
             static const NS_NAMED_LITERAL_STRING(sNullString, "null");
             static const NS_NAMED_LITERAL_STRING(sVoidString, "undefined");