【任务描述】

Interoperability testing for the following class extension scenarios:

eTS extends TypeScript user class
eTS extends TypeScript native class
eTS uses instanceof on an extended user class
eTS uses instanceof on an extended native class
eTS calls super() method within extended class constructor
eTS can add getters to access parent class protected property
eTS can alter parent class protected property
TS extends eTS native class
TS extends eTS user class
TS can access protected parent eTS class
TS can use eTS static method inherited by extension class

【解决方案】

【任务来源】