MutableCollection.addAll / += where the argument is a call
to Iterable.map/filter.
This code allocates an additional List object that can be saved by using mapTo/filterTo.
The quickfixes replaces the call with mapTo/filterTo.
示例:
coll1.addAll(coll2.map { transform(it) })
coll1 += coll2.map { transform(it) }
在应用快速修复后:
coll2.mapTo(coll1) { transform(it) }