message: Fix a compile warning on linux
  Can't cast directly between a pointer to function and a pointer to
  object.
diff: @@ -72,7 +72,7 @@ static llvm::sys::DynamicLibrary LoadPlugin(const lldb::DebuggerSP &debugger_sp,
  // TODO: mangle this differently for your system - on OSX, the first
  // underscore needs to be removed and the second one stays
  LLDBCommandPluginInit init_func =
  - (LLDBCommandPluginInit)dynlib.getAddressOfSymbol(
  + (LLDBCommandPluginInit)(uintptr_t)dynlib.getAddressOfSymbol(
  "_ZN4lldb16PluginInitializeENS_10SBDebuggerE");
  if (init_func) {
  if (init_func(debugger_sb))
  