2f75f658b1
Terminal resizing continues to be a source of statusline bugs, so much so that some users have started disabling it altogether. Different operating systems and terminal emulators exhibit subtly different behaviors, making it nearly impossible to handle resizing reliably across the board. This patch sidesteps those issues by clearing the entire screen when the terminal is resized. This avoids having to account for the previous, potentially wrapped statusline, the underlying cause of many of the aforementioned bugs. The obvious downside is that this clears the on-screen history, but I believe that’s a reasonable trade-off. Note that this only happens when resizing the terminal; when launching LLDB, the statusline is drawn without clearing the screen. rdar://154778410
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