[PATCH] jscript: Support null this in Function.prototype.bind.

[Jacek Caban]

Signed-off-by: Jacek Caban 
---
  dlls/jscript/function.c  | 13 +++++++++----
  dlls/mshtml/tests/es5.js |  3 +++
  2 files changed, 12 insertions(+), 4 deletions(-)