centralize all heap_lang notation in one file

6 jobs for master in 19 minutes and 49 seconds (queued for 42 seconds)
Status Job ID Name Coverage
  Build
passed #34025
fp
build-coq.8.10.dev

00:12:12

passed #34029
fp
build-coq.8.7.2

00:06:08

passed #34028
fp
build-coq.8.8.2

00:05:53

passed #34027
fp-timing
build-coq.8.9.0

00:05:22

passed #34026
fp
build-coq.8.9.1

00:06:28

passed #34024
fp
build-coq.dev

00:13:12