Function add_only_http_to_linker_sync 

pub fn add_only_http_to_linker_sync<T>(l: &mut Linker<T>) -> Result<()>
where
    T: WasiHttpView + 'static,

A slimmed down version of add_to_linker_sync which only adds wasi:http interfaces to the linker.

This is useful when using wasmtime_wasi::p2::add_to_linker_sync for example to avoid re-adding the same interfaces twice.