[Bug 45642] Chrome/ Chromium sandbox needs x86-64 syscall thunks to match Windows

https://bugs.winehq.org/show_bug.cgi?id=45642

--- Comment #3 from Fabian Maurer  ---
Created attachment 62926
  --> https://bugs.winehq.org/attachment.cgi?id=62926
Provide hookable 64bit api thunks (simpler method)

Interesting enough, I found another approach which is far less invasive:
Chromium doesn't check that there is an int 2e in win10 syscall thunks - so we
can just add a jump in there.
I figured it would fail since chromium copies the contents of the thunk, and
our jump would fail - but that doesn't seem to be the case.