message: feat(c-api) `wasm_module_name` sets `out` to `{0, NULL}` in case of failure.
diff: use super::module::wasm_module_t;
  use super::types::wasm_name_t;
  +use std::ptr;
  use std::str;
  use std::sync::Arc;
  /// Non-standard Wasmer-specific API to get the module's name,
  -/// otherwise `out` is untouched.
  +/// otherwise `out->size` is set to `0` and `out->data` to `NULL`.
  ///
  /// # Example
  ///
  @@ -60,7 +61,12 @@ pub unsafe extern "C" fn wasm_module_name(
  ) {
  let name = match module.inner.name() {
  Some(name) => name,
  - None => return,
  + None => {
  + out.data = ptr::null_mut();
  + out.size = 0;
  +
  + return;
  + }
  };
  *out = name.as_bytes().to_vec().into();
  @@ -95,7 +101,6 @@ pub unsafe extern "C" fn wasm_module_name(
  /// // Read the module's name. There is none for the moment.
  /// {
  /// wasm_name_t name;
  -/// name.size = 0;
  /// wasm_module_name(module, &name);
  ///
  /// assert(name.size == 0);
  