The rule was "capitalised is a type", which leaves i32 and string looking like
ordinary names in the one position — a signature — where the reader is there
to see the types.
The blocks that are not programs were the ones that had drifted: the usage text
had lost its indentation and the refusal table had trimmed "(see plan.org)" off
every message, so the page was showing wording the compiler does not print.
NEXT.md prints the banner with the restarts in source order; the walk is
innermost-first, so it is the other way round. A --dev build under timeout is
enough to settle that, and settles the two place and global snippets with it.
Copying a snippet into HTML is where a documented language stops being the
real one. Each block on the page is a program here with its recorded output
beside it, and check.sh is what says the page is still true after a change.
Everything here is checked against the compiler rather than against plan.org:
the design documents describe a language larger than the one that runs, and a
page that documented the plan would mislead the first person to try it.