https://codereview.appspot.com/549920043/diff/553940043/lily/include/lily-lexer.hh File lily/include/lily-lexer.hh (right):
https://codereview.appspot.com/549920043/diff/553940043/lily/include/lily-lexer.hh#newcode23 lily/include/lily-lexer.hh:23: #include <unordered_map> Please put C++ includes last. I know that Google advocates differently, but having them first makes it very easy to rely on that in other header files. Instead every header file should include what they use. https://codereview.appspot.com/549920043/