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No matter how large I make the window, this is all I can see of warnings:
How can I see the full text of the warning at the place it appears?
I could hover the mouse over the warning as it appears in the left pane and, after waiting long enough, a tooltip appears with the full text, but I find this very awkward... Is this the only way?
You can similarly hover over the warning itself. Even "unused variable" can be squished small enough so it can't fit (if you downsize the editor enough). Hover over the warning in place is the closest you'll come.