What do the icons in Xcode 4's debug area variable list mean?

Question

Is anyone able to provide a definitive guide to the labelled icons in Xcode 4\'s debug area variable list? Here\'s a list of what I have at the moment. I can\'t figure out what

Answer 1

They appear to be:

L = Local variable
A = Argument
S = Static variable
V = global Variable
R = register
V = instance Variable
E = Expression

Here are some links which discuss that part of the interface:

• debugging with Xcode
• debug area overview

edit: updated with Steve HHH's suggestion
edit2: updated following information from a WWDC 2012 presentation, "Debugging in Xcode" (video no longer available)