message: Make data_size a u64 in the public API, so that we can support larger memories in wasm without breaking the API.
diff: @@ -85,10 +85,10 @@ impl Memory {
  }
  /// Returns the size (in bytes) of the `Memory`.
  - pub fn data_size(&self) -> u32 {
  + pub fn data_size(&self) -> u64 {
  let definition = self.memory.vmmemory();
  let def = unsafe { definition.as_ref() };
  - def.current_length
  + def.current_length.into()
  }
  /// Returns the size (in [`Pages`]) of the `Memory`.
  