Comments on inner properties are stripped

TS: 2.0.0

// code.ts
/**
 * Some foo
 */
export const foo = {
  /**
   * Some boo
   */
  boo = 0
}

expect:

// code.d.ts
/**
 * Some foo
 */
export declare foo: {
  /**
   * Some boo
   */
  boo: number;
}

actual:

// code.d.ts
/**
 * Some foo
 */
export declare foo: {
  boo: number;
}

By the way, is there a way to separately control whether comment should be kept in *.d.ts and *.js?

Currently when tsconfig.json/compilerOptions/removeComments = true, comments are removed from both of them.

Would it be nice to keep the comments in *.d.ts but not *.js?

Start with the code.ts and code.d.ts examples and the compilerOptions/removeComments setting described in the issue. Trace declaration output for comments on inner properties, then verify that the expected nested comment is preserved and that comment removal for generated JavaScript and declaration files can be controlled as requested.