[cfe-dev] new warnings

[Mike Stump]

In file included from DeclGroup.cpp:14:
/Volumes/mrs5/net/llvm/llvm/tools/clang/lib/AST/../../include/clang/ 
AST/DeclGroup.h: In member function ‘clang::Decl**  
clang::DeclGroupRef::begin()’:
/Volumes/mrs5/net/llvm/llvm/tools/clang/lib/AST/../../include/clang/ 
AST/DeclGroup.h:65: warning: dereferencing type-punned pointer will  
break strict-aliasing rules
/Volumes/mrs5/net/llvm/llvm/tools/clang/lib/AST/../../include/clang/ 
AST/DeclGroup.h: In member function ‘clang::Decl**  
clang::DeclGroupRef::end()’:
/Volumes/mrs5/net/llvm/llvm/tools/clang/lib/AST/../../include/clang/ 
AST/DeclGroup.h:73: warning: dereferencing type-punned pointer will  
break strict-aliasing rules