effects throughout, including use of inttypes.h/PRI[ud]64 because printf() is
still stuck in a long world, conversion of %lu to %zu for printing values of
type size_t, and changing/renaming the g_check_cmp* family of functions.

Changed parser test macros so that _parse_ok just checks whether the match succeeded and _parse_match actually checks the resulting parse tree

Revert "C++ tests set up. They probably don't compile; need to write iostream ops for prettyprinting and set up C++ build in scons." Should have branched it.

This reverts commit 6a29277d.

C++ tests set up. They probably don't compile; need to write iostream ops for prettyprinting and set up C++ build in scons.

Refactored all of the desugaring code to no longer depend on memory being initialized to 0. Everything is about 12% faster now.

Cleaned up some memory leaks, got rid of gsequence, improved test macro to free memory that it allocated