Victor Costan 24424a1ef2 Style cleanup.
1) Convert iterator-based for loops to C++11 foreach loops.
2) Convert "void operator=" to "T& operator=".
3) Switch from copy operators from private to public deleted.
4) Switch from empty ctors / dtors to "= default" where appropriate.

PiperOrigin-RevId: 246679195
2019-05-04 17:42:20 -07:00
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2019-05-04 17:42:20 -07:00
2019-05-04 17:42:20 -07:00