Andy Street 96a581f6c2 Assert that node can have measure function <==> node is a leaf node
Summary: Instead of silently ignorning non-leaf nodes with measure functions, we should assert that we don't create those kinds of trees.

Reviewed By: emilsjolander

Differential Revision: D4130770

fbshipit-source-id: a3ef10a2e63bbc12b5aa07977e4b84c8d59e3ffe
2016-11-07 05:28:52 -08:00
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2016-10-25 17:13:36 -07:00