feat: add constructor hint

[Hazlank]

Same with vue and vuex,add hint to tell user use new operator

[posva]

Thanks! Can you make the dev warn, dev only, capitalize router and move the instance of check to the first param of the warn?

[Hazlank]

@posva warn don't need to judge dev。In other places, it has been judged outside，except base.js

[posva]

let's move the console.error outside of the if statement as it should be kept in production

[Hazlank]

@posva my bad,I changed it 😂