Tooltip inside CardActions raises Warning: Failed prop type

Titled case raises Warning: Failed prop type: The following properties are not supported: className. Please remove them. The issue started to appear after recent reimplementation of Tooltip component. Is it a desired behaviour? Might be connected with #12159

• This is a v1.x issue.
• I have searched the issues of this repository and believe that this is not a duplicate.

Expected Behavior

It should be possible to use Tooltip inside CardAction without above warning.

Current Behavior

         <CardActions>
            <Tooltip title="second tooltip">
              <Typography>Second text</Typography>
            </Tooltip>
          </CardActions>

causes above warning

Steps to Reproduce

Link: https://codesandbox.io/s/4j3oklzzyw

1. Just load above example and see warning in the console.

Your Environment

Tech	Version
Material-UI	v1.4.1
React	v16.4.1
browser	any

[Estournet]

I’ve been experiencing the same issue inside a ListItemIcon. Wrap your Tooltip inside a React.Fragment and the warning doesn’t show up anymore.

<ListItem>
 <ListItemIcon>
    <React.Fragment>
      <Tooltip placement="top" title="Hello !">
        <Icon>done</Icon>
      </Tooltip>
    </React.Fragment>
  </ListItemIcon>
</ListItem>

[oliviertassinari]

I have been exploring the scope of the possible solution. I think that the simplest one is to make the Tooltip transparent. Basically, we can remove: https://github.com/mui-org/material-ui/blob/6245aae2dc0a34624993d094d56a2db9445dd754/packages/material-ui/src/Tooltip/Tooltip.js#L456 and forward the properties to the children: https://github.com/mui-org/material-ui/blob/6245aae2dc0a34624993d094d56a2db9445dd754/packages/material-ui/src/Tooltip/Tooltip.js#L320

Anyone wants to work on it?