actually check for `@:genericBuild` when encountering a Rest parameter (see #3089)
actually check for `@:genericBuild` when encountering a Rest parameter (see #3089)

pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe