support result.Int() int not int64

[yingjie52]

conc := gjson.Get(json, "test1.concurrency").Int()

for i := 0; i < conc; i++ 

raise error: 无效运算: i < conc(类型 int 和 int64 不匹配)

[rentiansheng]

you can

conc := gjson.Get(json, "test1.concurrency").Int()
for idx := int64(0); idx < cnt; idx++ {
		fmt.Println(idx)
}

package main

import "fmt"

func main() {
	cnt := int64(10)
	for idx := int64(0); idx < cnt; idx++ {
		fmt.Println(idx)
	}
}

[zuozhehao]

var i int64
for i = 0; i < conc; i++