[LLVMdev] isa<UnaryInstruction> borked in 2.1

[ST]

Hi

I just had some code which filtered via isa<UnaryInstruction>. Strangely 
enough not only the instructions which inherited UnaryInstructions but also:
GetElemPtrInst, SwitchInst , xor, shl 
where true on isa<UnaryInstruction>. While the first two seem to be at least 
semantically ok the latter seem somehow wrong?

I didn't find the place where the isa_impl templates where resolved to the 
real thing, so i didn't dare to file a bug report... but i would happy if 
somebody could tell me... and yes i have looked at Casting.h.

Thanks
ST