[LLVMdev] new warnings in -r61596

[Mike Stump]

2 new warnings in llvm:

/Volumes/mrs5/net/llvm/llvm/lib/AsmParser/LLParser.cpp: In member  
function 'bool llvm::LLParser::ParseGlobal(const std::string&, const  
char*, unsigned int, bool, unsigned int)':
/Volumes/mrs5/net/llvm/llvm/lib/AsmParser/LLParser.cpp:446: warning:  
'IsConstant' may be used uninitialized in this function

Volumes/mrs5/net/llvm/llvm/lib/Analysis/ScalarEvolution.cpp: In  
function 'bool isNegative(llvm::SCEVHandle)':
/Volumes/mrs5/net/llvm/llvm/lib/Analysis/ScalarEvolution.cpp:2911:  
warning: control reaches end of non-void function