Genericise sliceutil functions (#4253)

* Genericise sliceutil.SliceSame
* Genericise intslice functions
* Genericise stringutil functions

pkg/sliceutil/intslice/int_collections.go

@@ -2,87 +2,6 @@ package intslice
 
 import "strconv"
 
-// IntIndex returns the first index of the provided int value in the provided
-// int slice. It returns -1 if it is not found.
-func IntIndex(vs []int, t int) int {
-	for i, v := range vs {
-		if v == t {
-			return i
-		}
-	}
-	return -1
-}
-
-// IntInclude returns true if the provided int value exists in the provided int
-// slice.
-func IntInclude(vs []int, t int) bool {
-	return IntIndex(vs, t) >= 0
-}
-
-// IntAppendUnique appends toAdd to the vs int slice if toAdd does not already
-// exist in the slice. It returns the new or unchanged int slice.
-func IntAppendUnique(vs []int, toAdd int) []int {
-	if IntInclude(vs, toAdd) {
-		return vs
-	}
-
-	return append(vs, toAdd)
-}
-
-// IntAppendUniques appends a slice of int values to the vs int slice. It only
-// appends values that do not already exist in the slice. It returns the new or
-// unchanged int slice.
-func IntAppendUniques(vs []int, toAdd []int) []int {
-	for _, v := range toAdd {
-		vs = IntAppendUnique(vs, v)
-	}
-
-	return vs
-}
-
-// IntExclude removes all instances of any value in toExclude from the vs int
-// slice. It returns the new or unchanged int slice.
-func IntExclude(vs []int, toExclude []int) []int {
-	var ret []int
-	for _, v := range vs {
-		if !IntInclude(toExclude, v) {
-			ret = append(ret, v)
-		}
-	}
-
-	return ret
-}
-
-// IntIntercect returns a slice of ints containing values that exist in both provided slices.
-func IntIntercect(v1, v2 []int) []int {
-	var ret []int
-	for _, v := range v1 {
-		if IntInclude(v2, v) {
-			ret = append(ret, v)
-		}
-	}
-
-	return ret
-}
-
-// IntNotIntersect returns a slice of ints containing values that do not exist in both provided slices.
-func IntNotIntersect(v1, v2 []int) []int {
-	var ret []int
-	for _, v := range v1 {
-		if !IntInclude(v2, v) {
-			ret = append(ret, v)
-		}
-	}
-
-	for _, v := range v2 {
-		if !IntInclude(v1, v) {
-			ret = append(ret, v)
-		}
-	}
-
-	return ret
-}
-
 // IntSliceToStringSlice converts a slice of ints to a slice of strings.
 func IntSliceToStringSlice(ss []int) []string {
 	ret := make([]string, len(ss))