[CMake] Add SharingPtr.h to the Framework header list
[CMake] Add SharingPtr.h to the Framework header list

lldb-forward.h which is a public header uses SharingPtr, so we need to include that header as well.

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@309429 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb