[PATCH 1/2] vbscript: Implemented Abs(try 8)

[Shuai Meng]

Thanks Piotr.
Change log:
   Handled res == NULL correctly;
   Added some tests about res == NULL.
testbot:
   https://testbot.winehq.org/JobDetails.pl?Key=7983
---
  dlls/vbscript/global.c      | 17 +++++++++++++++--
  dlls/vbscript/tests/api.vbs | 38 ++++++++++++++++++++++++++++++++++++++
  2 files changed, 53 insertions(+), 2 deletions(-)


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