hygiene, restrict yield_inter() signature

Signed-off-by: Sebastian Freundt <hroptatyr@fresse.org>
chore, test against yuck binary, not yuck-bootstrap

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'code/hygiene'

* code/hygiene:
  hygiene, restrict yield_inter() signature
Merge branch 'test/general'

* test/general:
  chore, test against yuck binary, not yuck-bootstrap
minor, provide downcase() upcase() and cond() macros

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, make sure dnls are unquoted in yuck_C_literal()

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'code/hygiene'

* code/hygiene:
  fix, make sure dnls are unquoted in yuck_C_literal()
  minor, provide downcase() upcase() and cond() macros