oneOf types for IntOrString

Kubernetes-commit: 809ca47bb1cf4a8ca27499f3b70c0da0b13b6fe5

Author: jiahuif

Diff for: pkg/util/intstr/intstr.go

@@ -131,6 +131,10 @@ func (IntOrString) OpenAPISchemaType() []string { return []string{"string"} }
 // the OpenAPI spec of this type.
 func (IntOrString) OpenAPISchemaFormat() string { return "int-or-string" }
 
+// OpenAPIV3OneOfTypes is used by the kube-openapi generator when constructing
+// the OpenAPI v3 spec of this type.
+func (IntOrString) OpenAPIV3OneOfTypes() []string { return []string{"integer", "string"} }
+
 func ValueOrDefault(intOrPercent *IntOrString, defaultValue IntOrString) *IntOrString {
 	if intOrPercent == nil {
 		return &defaultValue