No fix-it for mutation of function parameter

[AnthonyLatsis]

Description

We could offer to declare a mutable var x = x copy above the failing expression below.

Reproduction

func f(x: Int) {
  x = 3
  x += 3
}

Expected behavior

Fix-it to declare a variable.

Environment

Swift version 6.2-dev (LLVM 736ebbfa5fe3371, Swift d033eec)

Additional information

No response

[CrazyFanFan]

Another way to fix-it: changing 'x' to an inout parameter.

func f(x: inout Int) {
  x = 3
  x += 3
}