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In we solved #225, but the rule we created had an issue that resulted in an infinite loop. One would "fix" a problem, but the fix would create another problem that the same rule would pick up.
This demonstrated a hole in our testing tools, which this PR aims to fill. By checking to make sure all invocations of
assert_suggestion
result create no new lints, we can cut down on this kind of error significantly.By doing this in fact, we also found a bug in #376.