now we don't build?

llvm[2]: Compiling CFRefCount.cpp for Debug build
/Volumes/mrs5/net/llvm/llvm/tools/clang/lib/Analysis/../../include/clang/Analysis/PathSensitive/BugReporter.h: In constructor '<unnamed>::CFRefLeakReport::CFRefLeakReport(<unnamed>::CFRefBug&, clang::ExplodedNode<clang::GRState>*, clang::SymbolRef, clang::GRExprEngine&)':
/Volumes/mrs5/net/llvm/llvm/tools/clang/lib/Analysis/../../include/clang/Analysis/PathSensitive/BugReporter.h:50: error: 'std::string clang::BugReport::Description' is private
CFRefCount.cpp:2543: error: within this context
/Volumes/mrs5/net/llvm/llvm/tools/clang/lib/Analysis/../../include/clang/Analysis/PathSensitive/BugReporter.h:50: error: 'std::string clang::BugReport::Description' is private
CFRefCount.cpp:2544: error: within this context
make[2]: *** [/Volumes/mrs5/net/llvm/llvm-build/tools/clang/lib/Analysis/Debug/CFRefCount.o] Error 1

Sorry. I missed committing a header change. Fixed.