testcover-reinstrument-compose

testcover-reinstrument-compose is a compiled Lisp function in `testcover.el'.

(testcover-reinstrument-compose LIST FUN)

For a compositional function, the result is 1-valued if all
arguments are, potentially 1-valued if all arguments are either
definitely or potentially 1-valued, and multi-valued otherwise.
FUN should be `testcover-reinstrument' for compositional functions,
`testcover-reinstrument-list' for clauses in a `cond'.