Squashed 'platforms/Cross/plugins/' changes from a25de67..a992d76

a992d76 Add extrsa test functions used in FFI-Tests-djm.7 which test mixtures of floats and ints in argument lists and in structs.

git-subtree-dir: platforms/Cross/plugins
git-subtree-split: a992d76d509afce50f59f36110cb37613644e95d
Merge commit '0d45b59f0e5deed51186ddbcb4306c829bdbd412'