Josh Holmer fbc93c0166 Lint against needless uses of collect() ...

Handles cases of `.collect().len()`, `.collect().is_empty()`, and
`.collect().contains()`. This lint is intended to be generic enough to
be added to at a later time with other similar patterns that could be
optimized.

Closes #3034

2018-09-03 23:29:44 -04:00

3.9 MiB

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