DevTools: Change RemoteObject._describe method for Errors

Source/core/inspector/InjectedScriptSource.js

Index: Source/core/inspector/InjectedScriptSource.js
diff --git a/Source/core/inspector/InjectedScriptSource.js b/Source/core/inspector/InjectedScriptSource.js
index 4660bb19cfaf3693edd895463ba1fbb2ef81a2d3..0d03ec579e6dffe97cebc08ac3ee80efee84f3c8 100644
--- a/Source/core/inspector/InjectedScriptSource.js
+++ b/Source/core/inspector/InjectedScriptSource.js
@@ -682,9 +682,11 @@ InjectedScript.prototype = {
     _createThrownValue: function(value, objectGroup, exceptionDetails)
     {
         var remoteObject = this._wrapObject(value, objectGroup);
-        try {
-            remoteObject.description = toStringDescription(value);
-        } catch (e) {}
+        if (!remoteObject.description){
+            try {
+                remoteObject.description = toStringDescription(value);
+            } catch (e) {}
+        }
         return { wasThrown: true, result: remoteObject, exceptionDetails: exceptionDetails, __proto__: null };
     },
 
@@ -1042,6 +1044,9 @@ InjectedScript.prototype = {
             }
         }
 
+        if (obj instanceof Error && !!obj.message)

[aandrey, 2014/07/18 16:10:30]

obj.message can throw

+            return className + ": " + obj.message;
+
         return className;
     }
 }