Sorry to dig up an old topic, but I would just like to comment from an embedded developer perspective.
I would consider this a critical feature for myself, and many embedded developers. It's also one of the most basic requirements for embedded & C++ debugging for us. This also seems to be the only IDE that does not support locals/function arguments?
Because of this I have had to switch from CodeBlocks for my development, which is a shame for me because I miss it greatly. I would also like to continue work on my embedded plugin (cbmcu), which I have not worked on for some time.
I really need this feature back in codeblocks, and I would like to start looking at the code again. I can't think of any real technical issues that would prevent this feature, however bowing to your superior knowledge on the subject.
Marty.