The throwTestFailures tests in misc.nix produce confusing trace output
that looks like test failures even when tests pass.
This commit moves these tests to a new lib/tests/debug.sh script,
following the pattern from modules.sh, sources.sh, and filesystem.sh.
The confusing trace output does not appear in any logs anymore.
Example of the confusing log:
trace: FAIL "testDerivation":
Expected:
<derivation a>
Result:
<derivation b>
evaluation warning: Using `lib.generators.toPlist` without `escape = true` is deprecated
[ ]
Robert Hensing