bug#21671: [PATCH] fix python.el hanging up during fontification #21657

[immerrr again <immerrr@gmail.com>]

FTR, 0001-Fix-syntax-propertize-done.. patch seems unnecessary as commit [1]
does its job.

1. https://github.com/emacs-mirror/emacs/commit/0360b7f2c4f0358106e229de4dfe91a67445a50c

On Mon, Oct 12, 2015 at 2:48 PM, immerrr again <immerrr@gmail.com> wrote:
> Two patches are included.
>
> One fixes the fact that for some reason syntax-propertize--done has
> ceased to be buffer-local after commit [1] and for some reason commit
> [2] did not help. I did it the way other buffer-local variables are
> initialized and it worked. The change fixes #21657 that was failing
> because syntax-propertize--done was inherited from scratch buffer and
> docstring boundaries were not propertized as a result.
>
> The other infinite loop I found accidentally when adding a whitespace
> before module docstring. I have fixed one corner-case of it, but in
> other circumstances I'd argue that whatever smart extensions
> python-mode adds to forward-sexp, those extensions should never move
> point less than the normal forward-sexp should.
>
> Cheers,
> immerrr
>
> 1. https://github.com/emacs-mirror/emacs/commit/3928ef2dd5b8febf3b1d9c1bfb22af3698d16bea
>
> 2. https://github.com/emacs-mirror/emacs/commit/0360b7f2c4f0358106e229de4dfe91a67445a50c