Popup error on hovering.

[memchr]

Apparently, hovering over comments causes the extension to try to evaluate the expression, resulting in many pop-up errors

This is similar to #46 but a bit more disruptive.

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For example, when I hover on word cursor from comment // don't warp cursor outside the window, it was evaluated in gdb, resulting in the popup stating no symbol "cursor" in current context. I tried to suppress this error but couldn't find the appropriate options.

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using gdb 14.2