message: Support multiple custom sections with the same name
diff: @@ -78,7 +78,7 @@ pub struct ModuleInfo {
  pub em_symbol_map: Option<HashMap<u32, String>>,
  /// Custom sections.
  - pub custom_sections: HashMap<String, Vec<u8>>,
  + pub custom_sections: HashMap<String, Vec<Vec<u8>>>,
  /// Flag controlling whether or not debug information for use in a debugger
  /// will be generated.
  @@ -102,7 +102,8 @@ impl ModuleInfo {
  let bytes = reader.read_bytes(len)?;
  let data = bytes.to_vec();
  let name = name.to_string();
  - self.custom_sections.insert(name, data);
  + let entry: &mut Vec<Vec<u8>> = self.custom_sections.entry(name).or_default();
  + entry.push(data);
  }
  }
  Ok(())
  