try4 [1/2] kernel32: Fix error returns from CreateFile (at least the simple ones).

[Guy Albertelli]

Native tests show that if NtCreateFile returns STATUS_FILE_IS_A_DIRECTORY
then CreateFile[AW] should return ERROR_PATH_NOT_FOUND if the requested
filename has a trailing \. Otherwise ERROR_ACCESS_DENIED which is the
correct conversion of the Nt STATUS normally.

Changelog:
  - CreateFile[AW] should return ERROR_PATH_NOT_FOUND when
    STATUS_FILE_IS_A_DIRECTORY is returned from NtCreateFile and
    the requested filename has a trailing \
---
 dlls/kernel32/file.c       |    7 +++++++
 dlls/kernel32/tests/file.c |    9 ++++-----
 2 files changed, 11 insertions(+), 5 deletions(-)

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