Injector.mapClass()的参数改为字符串，防止接口注入时传入接口得到空字符串。
Injector.mapClass()的参数改为字符串，防止接口注入时传入接口得到空字符串。

SamuelGavin/egret-core,SmallAiTT/egret-core,SamuelGavin/egret-core,unsilence/egret-core,unsilence/egret-core,jiangzhonghui/egret-core,wl3780/egret-core,jarvys/egret-hacking,wisdomsword/egret-core,wisdomsword/egret-core,wl3780/egret-core,Lanfei/egret-core,jarvys/egret-hacking,jiangzhonghui/egret-core,SmallAiTT/egret-core,Lanfei/egret-core