bug#62371: [PATCH] Fix go-ts-mode incorrect docstring inserted for methods

[Eli Zaretskii <eliz@gnu.org>]

> From: Evgeni Kolev <evgeni.d.kolev@gmail.com>
> Date: Wed, 22 Mar 2023 10:05:56 +0200
> 
> The docstring inserted with go-ts-mode's C-c C-d was incorrectly
> prefixed with the receiver "(myStruct).":
> 
>     // (myStruct).act
>     func (m *myStruct) act () {...}
> 
> The above docstring is not correct because the receiver "myStruct"
> should not be in the docstring.
> 
> The issue is caused by imenu and go-ts-mode--defun-name using the same
> code to determine the defun name. Instead, they should produce
> different results - imenu should show the "myStruct" prefix, but the
> docstring should not.
> 
> This commit fixes the incorrect behavior by introducing an optional
> SKIP-PREFIX parameter to (go-ts-mode--defun-name). Pressing C-c C-d
> now inserts just the method name:
> 
>     // act
>     func (m *myStruct) act () {...}
> 
> * lisp/progmodes/go-ts-mode.el (go-ts-mode--defun-name): New optional
> parameter SKIP-PREFIX. (go-ts-mode-docstring):
> Call (go-ts-mode--defun-name t) instead of (treesit-defun-name).

Thanks.

Dmitry, Yuan, Randy: any comments?