Function catch

include/sol/trampoline.hpp:123–125

LuaJIT cannot have the catchall when the safe propagation is on but LuaJIT will swallow all C++ errors if we don't at least catch std::exception ones

			// but LuaJIT will swallow all C++ errors
			// if we don't at least catch std::exception ones
			catch (...) {
				call_exception_handler(L, optional<const std::exception&>(nullopt), "caught (...) exception");
			}
#endif
			return lua_error(L);
#endif // Safe exceptions