message: Use wasmer_js for now in the derive
diff: @@ -27,7 +27,7 @@ fn impl_wasmer_env_for_struct(
  let lifetimes_and_generics = generics.params.clone();
  let where_clause = generics.where_clause.clone();
  quote! {
  - impl < #lifetimes_and_generics > ::wasmer::WasmerEnv for #name < #lifetimes_and_generics > #where_clause{
  + impl < #lifetimes_and_generics > ::wasmer_js::WasmerEnv for #name < #lifetimes_and_generics > #where_clause{
  #trait_methods
  }
  @@ -42,7 +42,7 @@ fn impl_wasmer_env(input: &DeriveInput) -> TokenStream {
  let struct_name = &input.ident;
  set_dummy(quote! {
  - impl ::wasmer::WasmerEnv for #struct_name {
  + impl ::wasmer_js::WasmerEnv for #struct_name {
  fn init_with_instance(&mut self, instance: &::wasmer::Instance) -> Result<(), ::wasmer::HostEnvInitError> {
  Ok(())
  }
  @@ -205,7 +205,7 @@ fn derive_struct_fields(data: &DataStruct) -> (TokenStream, TokenStream) {
  }
  let trait_methods = quote! {
  - fn init_with_instance(&mut self, instance: &::wasmer::Instance) -> Result<(), ::wasmer::HostEnvInitError> {
  + fn init_with_instance(&mut self, instance: &::wasmer_js::Instance) -> Result<(), ::wasmer_js::HostEnvInitError> {
  #(#finish)*
  Ok(())
  }
  