Remove the requirement of carrying args in entry.exit()

[sczyh30]

Issue Description

Type: enhancement

Describe what feature you want

Remove the requirement of carrying args in entry.exit().

目前对于带参数的自定义埋点，entry.exit() 的时候需要也带上埋点的参数（比如 entry.exit(arg1, arg2)），这样使用起来不太方便。期望最终实现 exit 时不需要带上埋点的参数以及 batchCount。

Describe your initial design (if present)

Hold args in Entry so that users don't need to carry args or argMap on Entry exit.