M-x magit-diff-flycheck in a magit-diff buffer to display a
filtered list of Flycheck errors for the added/modified lines only.
Use can also run the command with a prefix which will prompt you for
the scope of the errors, eg.
C-u M-x magit-diff-flycheck.
This is primarily meant to be used on legacy projects where you do not want to see errors for the whole file but only for the added/modified lines.
|If non-nil, disable message output while running.|
|The default scope for filtering errors.|
|Lines of context for diff when filtering errors.|
Open up a magit-diff buffer and run