[cfe-dev] new warnings

[Mike Stump]

Since I had such good luck with the last set, here are a few more:

GRExprEngine.cpp: In member function 'void  
clang::GRExprEngine::VisitBinaryOperator(clang::BinaryOperator*,  
clang::ExplodedNode<clang::GRState>*,  
clang::ExplodedNodeSet<clang::GRState>&)':
GRExprEngine.cpp:2069: warning: dereferencing type-punned pointer will  
break strict-aliasing rules
GRExprEngine.cpp:2071: warning: dereferencing type-punned pointer will  
break strict-aliasing rules
RValues.cpp: In member function 'const clang::SymbolID*  
clang::RVal::symbol_begin() const':
RValues.cpp:33: warning: dereferencing type-punned pointer will break  
strict-aliasing rules
RValues.cpp:35: warning: dereferencing type-punned pointer will break  
strict-aliasing rules

:-)  With these, I think we are back down to 0 warnings.