Convert some values from buffer_defs.h to bools
Merge pull request #1345 from war1025/dev/wininfo_bools

Convert some values into bools
test: begin to migrate legacy test 003
create tmp 003_*.lua test file; will migrate manually

The migration script produced a faulty test file; I will migrate the
test suite by hand to track down the problem.
migrating legacy test3 by hand