lib/fuzzer.zig             |   1 +
 lib/fuzzer/main.js         |  13 +-
 lib/std/Build/Fuzz.zig     | 209 +++++++++++++++++++++++++--
 lib/std/Build/Step/Run.zig |   6 +-
 lib/std/debug.zig          |   1 +
 lib/std/debug/Coverage.zig | 244 ++++++++++++++++++++++++++++++++
 lib/std/debug/Info.zig     | 153 ++------------------
 tools/dump-cov.zig         |  16 ++-
 8 files changed, 478 insertions(+), 165 deletions(-)