* question types or behaviors implementing own head_code()

$ git branch -a | grep '^  remotes/origin/[0-9]' | grep -E 'qtype|qbehaviour' | xargs git grep 'function head_code' | grep -v 'question/type/rendererbase.php' | grep -v 'question/behaviour/rendererbase.php' | cut -d: -f2- | sort -u

question/type/formulas/renderer.php:    public function head_code(question_attempt $qa) {
question/type/shortmath/renderer.php:    public function head_code(question_attempt $qa) {

============ ============ ============ ============ ============ ============

* question types having script.js or script.php files (2 false positives, script.sh)

$ git branch -a | grep '^  remotes/origin/[0-9]' | grep -E 'qtype|qbehaviour' | xargs -I{} git log {} --full-history --oneline -- question/type/**/script.* | grep PLUGIN

79566bb1e7b PLUGIN-18789 qtype_shortmath: cibot precheck request
b5b87bc96a1 PLUGIN-19654 qtype_shortmath: cibot precheck request
^^^false positives