[Lazarus] Improve message dialog

[Martin]

On 09/05/2012 15:32, Graeme Geldenhuys wrote:
>> So the questions are (if the grid is fixed):
>>
>> 1) what is the preferred display:
>> - treeview
>> - grid
> I would still go for the treeview as it could nicely display the
> hierarchy of properties (if supported).
There also is the option to maintain both, the treeview and the grid. 
And eventually offer both in the watches and object window.

But that only makes sense, if the treeview will be maintained and all 
the features being added