What do the icons mean in the Find Symbol Results window in VS 2013?

Question

What do the various icons mean next to the matches found in the Find Symbol Results window? There's a question mark one, a round one looking a little like a no entry sign and one that looks like goto source (this is next to the actual match found).

Note: To do this symbol search I right click on a variable to get the context menu up then select "Find All References".

Answer 1

The different symbols means different type of references, e.g. declarations, read references, write references, comment and string hits, unknown/guess hits.

The question mark symbolizes unknown/guess hits and the no entry sign is for variables that match by name, but are hidden in their scope by another variable with the same name. The third, "go to source" icon is the read / write reference symbol.

Unknown/Guess hit

Matches by name but is hidden in current scope by another symbol

Read/write reference symbol

Unfortunately I did not find any documentation about the topic, you have to experiment.