use dts parser option to handle dts file

[hardfist]

Unfortunately tsc treats d.ts and ts file differently

• a.ts

const a: string; // error

• a.d.ts

const a :string // no error

so we can't use normal typescript parser to parse d.ts file, fortunately tsc parser has an option to control the parser behavior babel/babel-loader#912 (comment), so we should enable this option to handle dts file correctly