Adding upstream version 0.8.9.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pkg/util/util_kinds.go

@@ -0,0 +1,25 @@
+package util
+
+import (
+	"reflect"
+)
+
+// IsUnsignedInt is a check against the unsigned integer types.
+func IsUnsignedInt(kind reflect.Kind) bool {
+	return kind >= reflect.Uint && kind <= reflect.Uint64
+}
+
+// IsSignedInt is a check against the signed decimal types.
+func IsSignedInt(kind reflect.Kind) bool {
+	return kind >= reflect.Int && kind <= reflect.Int64
+}
+
+// IsCollection is a check against slice and array.
+func IsCollection(kind reflect.Kind) bool {
+	return kind == reflect.Slice || kind == reflect.Array
+}
+
+// IsNumeric returns whether the Kind is one of the numeric ones.
+func IsNumeric(kind reflect.Kind) bool {
+	return kind >= reflect.Int && kind <= reflect.Complex128
+}