[Input] Size prop only works on TextField, not on Input

• The issue is present in the latest release.
• I have searched the issues of this repository and believe that this is not a duplicate.

I’d like to be able to tell regular Inputs, or OutlinedInputs to have smaller size, the problem is the size API is only exposed on TextField, but not the more basic input components.

These 2 components don’t result in the same effect:

<OutlinedInput size="small" /> // No effect

<TextField variant="outlined" size="small" /> // Small size works

Here’s a reproduction: https://codesandbox.io/s/agitated-gould-qjd6k

I would expect to be able to change the size in either component, and it “just works”. So I believe the margin should be changed in the child components, and TextField just passes the size along to the input component, instead of FormControl.

[oliviertassinari]

@mayralgr It’s definitely good to take, make sure you start from the next branch. We have also the opportunity to introduce breaking changes if they offer improvements in exchange, but we would need to evaluate them, case by case as they are costly too.

[oliviertassinari]

The test could be a simple as checking the class names applied.