feat: add emitDecoratorMetadata compiler option

[Gaubee]

isolatedModules, experimentalDecorators, emitDecoratorMetadata

[CLAassistant]

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[Gaubee]

😸

[dsherret]

Thanks @Gaubee! I wanted to merge this one in because I might do a release soon, so I updated this PR to make the emitDecoratorMetadata compiler option false by default and removed the isolatedModules and experimentalDecorators options because those are always true in Deno. What's the rationale behind adding these options? Do you need them?

[Gaubee]

Thanks @Gaubee! I wanted to merge this one in because I might do a release soon, so I updated this PR to make the emitDecoratorMetadata compiler option false by default and removed the isolatedModules and experimentalDecorators options because those are always true in Deno. What's the rationale behind adding these options? Do you need them?

experimentalDecorators of course, many project use typescript decorators.
but the proposal-decorators
is coming. so I think this is about to be an option rather than a fixed value.

by the way. I write my packages use deno as my toolchain for nodejs/web/deno, I couldn't find a better toolchain then this one.

[Gaubee]

Thanks @Gaubee! I wanted to merge this one in because I might do a release soon, so I updated this PR to make the emitDecoratorMetadata compiler option false by default and removed the isolatedModules and experimentalDecorators options because those are always true in Deno. What's the rationale behind adding these options? Do you need them?

isolatedModules chould references to const enum members, is an looser options.
we should open this options, should work~

[Gaubee]

#226 rebase and open again