missing internal generics

[moodymudskipper]

You might want to integrate those in sloop:::internal_generics():

c("is.unsorted", "lengths", "nchar", "rep.int", "rep_len", "@", "@<-", "!", "%*%", "tcrossprod" "crossprod")

These come from a review of .S3PrimitiveGenerics, .knownS3Generics, .internalGenerics, .GenericArgsEnv .get_internal_S3_generics and ?InternalMethods. There might be more missing given the amount of inconsistency in the above.