[gjs] (8 commits) Non-fast-forward update to branch master.msvc

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'master.msvc' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  e36e366... build: Define WIN32_LEAN_AND_MEAN on Windows builds
  6c893a3... gjs/text-encoding.cpp: Replace strcasecmp with g_ascii_strc
  440be1e... gjs_pch.hh: Check for alloca.h and syscall.h
  c998b7d... build: Disable PCH on Visual Studio as well
  97e47db... README.MSVC.md: One more fix in the SpiderMonkey headers

Commits added to the branch:

  77cf3b0... meson: fix version check for precompiled headers (*)
  dc9e63b... Merge branch 'alatiera/meson-pch' into 'master' (*)
  ad52fd1... build: Define WIN32_LEAN_AND_MEAN on Windows builds
  9f00808... gjs/text-encoding.cpp: Replace strcasecmp with g_ascii_strc
  5a7e956... gjs_pch.hh: Check for alloca.h and syscall.h
  a3566ba... build: Disable PCH on Visual Studio as well
  77c32bc... README.MSVC.md: One more fix in the SpiderMonkey headers
  67dae67... gjs_pch.hh: Include alloca.h and syscall.h in profiler buil

(*) This commit already existed in another branch; no separate mail sent