Make bindings generation dramatically faster #292
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This series of changes makes generation of the bindings dramatically faster, by fixing a number of issues around re-parsing things, re-doing expensive work, doing O(n) scans when O(1) lookups are possible, etc. It also slightly simplifies some of the code by removing the multiprocessing layer for bindings generation. Despite now being single-threaded, the total time for bindings generation on my 16-core machine drops from 8 minutes to nearly instant. (I am not sure what percent speedup that is, but it's huge!)