decorator with 2.6.0-rc and esnext, tsc still transpiles, no way to turn off transpilation even with esnext

[aappddeevv]

TypeScript Version: 2.6.0-rc

There is not way to turn off decorator transpilation processing so that it passes through. I use babel for filling and compiling down to my target javascript environment so typically I do not want tsc to transpile modern javascript features. target=esnext helps ensure that tsc assumes that the target environment is quite modern.

However, if there is a decorator in the ts file, it is translated into __decorate(...) regardless of what settings I might use to try and keep it intact into my next compilation stage, which is babel.

@freeze
class Foo { ... }

Even using esnext as the target, you get in the source:

... = __decorate(...)

But we really want pass through like many other features of javascript that pass through when esnext is set:

@freeze
class Foo { ... }

[mhegazy]

Duplicate of #16882

[mhegazy]

Automatically closing this issue for housekeeping purposes. The issue labels indicate that it is unactionable at the moment or has already been addressed.