adding lexical/schema cache
working on lexeme/schema caching
working on adding cache: little benefit measured so far.
add overc-with-cache: memoized wrapper around over/overc
use cache in more places
shuffle result in get-lex
add (overh-with-cache) function
removing lexicon-of-phrases param
removing lexicon-of-heads param from parents-with-phrasal-complements
s/lexicon-of-heads/lexicon/
remove call to unused get-lexicon-of-head-spec and definition of get-lexicon-of-head-spec
remove vestiges of lexicon-of-heads code
s/overc/overc-with-cache/
don't shuffle here: assumed shuffled elsewhere.
create package-wide cache lex/phrase and pass to lightning-bolt
comments during caching
shuffle changes