eina_file: set errno on open fail for win32 build

Summary:
windows does not automatically set errno so we must do it ourselves

@fix
Depends on D8103

Reviewers: vtorri

Reviewed By: vtorri

Subscribers: cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D8104

src/lib/eina/eina_file_win32.c

@@ -736,13 +736,17 @@ eina_file_open(const char *path, Eina_Bool shared)
 
    if (handle == INVALID_HANDLE_VALUE)
      {
+       errno = GetLastError();
        WRN("eina_file_open() failed with file %s: %s",
-           filename, evil_last_error_get());
+           filename, evil_format_message(errno));
        goto free_file;
      }
 
    if (!GetFileAttributesEx(filename, GetFileExInfoStandard, &fad))
-     goto close_handle;
+     {
+        errno = GetLastError();
+        goto close_handle;
+     }
 
    length.u.LowPart = fad.nFileSizeLow;
    length.u.HighPart = fad.nFileSizeHigh;