readGroupVInts
Read all the group varints, including the tail vints. we need a long[] because this is what postings are using, all longs are actually required to be integers.
Parameters
dst
the array to read ints into.
limit
the number of int values to read.
Read all the group varints, including the tail vints.
Parameters
dst
the array to read ints into.
limit
the number of int values to read.