[PATCH 4/6] mshtml/tests: Introduce sync_test helper.

[Jacek Caban]

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
  dlls/mshtml/tests/es5.js      | 132 ++++++++++------------------------
  dlls/mshtml/tests/winetest.js |  18 ++++-
  2 files changed, 54 insertions(+), 96 deletions(-)