#694 - regarding inheritance of toString: for IE, check that instance has it's own toString - for Safari, just check toString

git-svn-id: http://svn.openlayers.org/trunk/openlayers@3150 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/BaseTypes.js

@@ -31,8 +31,9 @@ OpenLayers.Class = {
             //  so the util.extend() doesnt copy it over. we do it manually.
             // 
             // to be revisited in 3.0
-            // 
-            if (arguments[i].hasOwnProperty('toString')) {
+            //
+            if((arguments[i].hasOwnProperty && arguments[i].hasOwnProperty('toString')) ||
+               (!arguments[i].hasOwnProperty && arguments[i].toString)) {
                 proto.toString = arguments[i].toString;
             }
         }