[swift-evolution] Hidden initiallizations ...

[Andrey Tarantsov]

> Having more that one variable with the same name in one method is stupid and the language should prevent that at least. 

Actually, we're doing it all the time:

if let foo = foo {
  ...
}

var foo = foo

You can do this in a subscope, you can do this to the arguments, and you can do this to fields.

A.

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