-- wh >cond{...} mid-body must parse as a while loop, not a fresh fn decl.
-- Reserved statement keywords (wh/ret/brk/cnt) never start a fn header,
-- so the parser's body-boundary heuristic now skips them.
dec s:n>n;v=+s 0;wh >v 0{v=- v 1};+v 0
cnt5 s:n>n;v=+s 0;c=0;wh >v 0{v=- v 1;c=+c 1};+c 0
-- run: dec 5
-- out: 0
-- run: dec 0
-- out: 0
-- run: dec 1
-- out: 0
-- run: cnt5 5
-- out: 5
-- run: cnt5 3
-- out: 3