[PATCH] ntdll: Fix unwinding from leaf function on x86_64.

[Ken Thomases]

If no existing Wine test covers this case, then you should add a test both demonstrating that your change is correct and to prevent any future changes from accidentally re-breaking things.

-Ken

> On Mar 15, 2019, at 2:55 PM, Derek Lesho <dereklesho52 at gmail.com> wrote:
> 
> I'm not sure why that test fails, that test shouldn't even trigger the
> code I change.  By the way, I made a test case that compiles in MSVC.
> It's slightly modified from the MSDN's seh example to showcase the
> issue with leaf functions: https://godbolt.org/z/mo1-HV
> 
> On Fri, Mar 15, 2019 at 3:40 PM Marvin <testbot at winehq.org> wrote:
>> 
>> Hi,
>> 
>> While running your changed tests, I think I found new failures.
>> Being a bot and all I'm not very good at pattern recognition, so I might be
>> wrong, but could you please double-check?
>> 
>> Full results can be found at:
>> https://testbot.winehq.org/JobDetails.pl?Key=49463
>> 
>> Your paranoid android.
>> 
>> 
>> === debian9b (64 bit WoW report) ===
>> 
>> ntdll:
>> env.c:498: Test failed: wrong end ptr 0x1238c/0x12390
> 
>