[Bug 39557] New: Dead code in IsDialogMessageW

https://bugs.winehq.org/show_bug.cgi?id=39557

Bug ID: 39557
           Summary: Dead code in IsDialogMessageW
           Product: Wine
           Version: 1.7.54
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

IsDialogMessageW sets dlgCode to 0, then under VK_UP checks if (!(dlgCode &
DLGC_WANTARROWS)). This if statement can never be true.

https://source.winehq.org/git/wine.git/blob/cbaab82d086e36dacaa22c6adf80f911...