Paul van Brenk 52ec508e27 Code fix for missing imports (#11768)
* Add codefix for missing imports + tests

* Re-order and cleanup

* refactor

* make tests pass

* Make import specifier for new imports more comprehensive

* Fix existing import cases

* refactor

* Fix multiple import statement case

* add multiple code fixes and code action filtering and polishing

* not using the generic verify method for import fixes.

* Correct insert position for new imports

* improve the code action filtering logic

* Fix line ending issue

* cache where we can
2016-11-16 16:01:16 -08:00
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