Guard AddCXXSynthetic with LLDB_DISABLE_PYTHON
Guard AddCXXSynthetic with LLDB_DISABLE_PYTHON

The function only avaibleble when python is enabled. Guard the new call
in the Java plugin with LLDB_DISABLE_PYTHON until we can change
AddCXXSynthetic to be available in all case to get the build bots green
again.

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@268626 91177308-0d34-0410-b5e6-96231b3b80d8

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