Flow: Difficult to suppress duplicate module provider errors when multiple versions of a transitive dep get installed

[jedwards1211]

Please just get rid of these errors for the time being.

https://github.com/facebook/fbjs/issues/294

This happens even when I have module.system=node. I'm not even using haste so this is a bug.

[jedwards1211]

Happens when (due to seeming yarn bugs) two different versions of fbjs get installed. Since the @providesModule annotations are some janky hack that seems internal to Facebook, please provide an option to at least suppress all of these errors.

[jedwards1211]

Also happens if dupe versions of warning get installed, so this is widespread, really annoying problem:

Error ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ node_modules/react-router-dom/node_modules/warning/warning.js:1:1

Duplicate module provider for warning. Change either this module provider or the current module
provider [1].

     node_modules/react-router-dom/node_modules/warning/warning.js
     1│ /**
     2│  * Copyright (c) 2014-present, Facebook, Inc.
     3│  *
     4│  * This source code is licensed under the MIT license found in the

     node_modules/@material-ui/core/node_modules/warning/warning.js
 [1] 1│ /**


Error ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ node_modules/react-router/node_modules/warning/warning.js:1:1

Duplicate module provider for warning. Change either this module provider or the current module
provider [1].

     node_modules/react-router/node_modules/warning/warning.js
     1│ /**
     2│  * Copyright (c) 2014-present, Facebook, Inc.
     3│  *
     4│  * This source code is licensed under the MIT license found in the

     node_modules/@material-ui/core/node_modules/warning/warning.js
 [1] 1│ /**