wined3d: Rewrite condition in vshader_program_add_param() to actually distinguish between two cases.

Adjust type of loop variable in INT21_Ioctl_Char().

user32: Fix variable type in SCROLL_HandleScrollEvent().  Remove useless check in SCROLL_SetScrollInfo().

kernel32: Change the shared manifest test to depend on a build number that isn't currently published on at least XP, showing that assemblies with higher build numbers can be used.