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+These files are "known-good" compiler output, generated from a stable version of
+Racc. Whenever Racc is refactored, or changes are made which should not affect the
+compiler output, running "rake test" checks that the compiler output is exactly
+the same as these files.
+
+If a change is made which *should* change the compiler output, these files will
+have to be regenerated from the source in test/assets, and the results committed.