Still no repro, even with our user.cfg.xml and your workspace.
Try this. Place your cursor on one of the instances of qla27xx_skip_entry(), and then go to the SlickEdit command line and type "codehelp-trace-push-refs" Then go to the SlickEdit debug output window and hit Ctrl+X to copy the contents to the clipboard, paste it into an empty text file, and attach it to this list. That will help me debug what is different in your specific case.
Also, verify that you do not have any filters enabled in the References tool window by right-clicking, navigating to the Quick Filters submenu, and verifying that "Show all tags" is checked.