lib/compiler/Maker/Step/Run.zig |  40 +-
 lib/std/Io.zig                  |  18 -
 lib/std/Io/Threaded.zig         | 166 ++++----
 lib/std/c.zig                   |   6 +
 lib/std/process.zig             |  52 ++-
 test/src/runner.zig             | 654 ++++++++++++++++++++++++++++++--
 test/standalone/build.zig       |   1 -
 test/tests.zig                  |   2 +-
 tools/runner-check.zig          | 177 ---------
 9 files changed, 762 insertions(+), 354 deletions(-)