doc/langref.html.in       |  14 +-
 src/all_types.hpp         |   6 +-
 src/analyze.cpp           |  14 +-
 src/ir.cpp                | 454 +++++++++++++++++++++++++-------
 src/parser.cpp            |  25 +-
 std/debug/index.zig       |  14 +-
 std/event/loop.zig        |   4 +-
 test/behavior.zig         |   1 +
 test/cases/cancel.zig     |  92 +++++++
 test/cases/coroutines.zig |   4 +-
 10 files changed, 486 insertions(+), 142 deletions(-)