Overload Doc Comment Issue

[aozgaa]

TypeScript Version: master: commit adfdae0
Tested on Win10 in vscode 1.6.1 (commit 9e4e44c19)
It appears doc comments are shared between only some of the overloads in the following code snippet. this may be desirable -- perhaps each overload deserves a different description. But then the current behavior is strange as well.

Code

class A {}
class B { x: number }
class C { y: number }
class D { z: number }

/**
 * A doc comment.
 */
export function f(d: D): string; 
export function f(c: C): string; 
export function f(b: B): string;
export function f(a: A): string {
    return "";
}

Expected behavior:

On hover, all overloads get a doc comment description.

Actual behavior:

Only the overloads with argument of type D and A get the doc comment.

[kitsonk]

This has "annoyed" me that they can't be shared by default.

[mhegazy]

duplicate of #407