[Vala] Strange behavior with hex literals being misinterpreted as int64

[Thomas Olson <tolson stratagium net>]

Hello,

I've encountered this several times where the Vala compiler will 
misinterpret a four byte hex literal as a long or int64.  For example 
0xFFFFFFFF requires a cast in order to be assigned to a uint32.  Is this 
a known bug?

Thanks,

Tom