<div style="font-family: arial, helvetica, sans-serif"><font size="2">The goal is to have a SmallDenseMap class that shares most of the logic (and iterators etc) with DenseMap, but allocates a small bucket array in-line.<div>
<br></div><div>There are several smaller refactoring steps that clean things up after this one, but this is the invasive change I really want pre-commit review on. The rest should follow easily afterward.</div></font></div>