To build, pass `--with-sb-cover-for-internals` to make.sh
Test running scripts have been adapted; pass `--coverage` to
run-tests.sh and/or ansi-tests.sh to generate .coverage files, then
use a script like `cover-script.lisp` to generate a report.
Things that we need to fix:
- it's pretty slow (build time roughly doubles)
- the report is fairly ugly (and doesn't sort the sources in the way
I would expect)
- it exposes some issue in combination with --with-sb-show
Can't compute fixup relative to movable object
#<code id=5419 [7] (FLET "PPRINT-BLOCK" :IN "SYS:SRC;CODE;WARM-ERROR.LISP") {1203AEC9BF..1203AED4A0}>
