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Many classes implement an
Iterator<T>
-returning method, but none of them declare their implementation ofIterable<T>
. This PR mostly adds declarations (and renames one method inTuple
) to allow for the use ofIterable<T>
features in Java, including "enhanced" for-loops.Re:
Tuple.fields()
, I didn't find any call sites, but I don't know if the renaming breaks any unreleased tests. Just FYI.