DevTools: Added error message when the command is invoked from the console with exception

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..1e52399fd564938b7c02551ee8006d7c1023fc29 100644
--- a/Source/core/inspector/InjectedScriptSource.js
+++ b/Source/core/inspector/InjectedScriptSource.js
@@ -617,7 +617,7 @@ InjectedScript.prototype = {
                      result: this._wrapObject(func.apply(object, resolvedArgs), objectGroup, returnByValue),
                      __proto__: null };
         } catch (e) {
-            return this._createThrownValue(e, objectGroup);
+            return this._createThrownValue(e, objectGroup, false);
         }
     },
 
@@ -670,21 +670,22 @@ InjectedScript.prototype = {
                      result: this._wrapObject(wrappedResult.result, objectGroup, returnByValue, generatePreview),
                      __proto__: null };
         }
-        return this._createThrownValue(wrappedResult.result, objectGroup, wrappedResult.exceptionDetails);
+        return this._createThrownValue(wrappedResult.result, objectGroup, generatePreview, wrappedResult.exceptionDetails);
     },
 
     /**
      * @param {*} value
      * @param {string} objectGroup
+     * @param {boolean} generatePreview
      * @param {!DebuggerAgent.ExceptionDetails=} exceptionDetails
      * @return {!Object}
      */
-    _createThrownValue: function(value, objectGroup, exceptionDetails)
+    _createThrownValue: function(value, objectGroup, generatePreview, exceptionDetails)
     {
-        var remoteObject = this._wrapObject(value, objectGroup);
-        try {
+        var remoteObject = this._wrapObject(value, objectGroup, false, generatePreview && !(value instanceof Error));
+        if (!remoteObject.description){
             remoteObject.description = toStringDescription(value);
-        } catch (e) {}
+        }
         return { wasThrown: true, result: remoteObject, exceptionDetails: exceptionDetails, __proto__: null };
     },
 
@@ -1042,6 +1043,9 @@ InjectedScript.prototype = {
             }
         }
 
+        if (obj instanceof Error && !!obj.message)

[vsevik, 2014/07/18 14:41:06]

Let's extract this change to a separate CL.

[kozyatinskiy1, 2014/07/18 16:10:08]

Done.

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