C# 6.0 declaration expressions

gistfile1.cs

// CA "To declaration statement"
{
  var t = F(out var x);

  // =>

  int x;
  var t = F(out x);
}


// Inspection "Declaration expression is not used" + QF "Remove variable"
{
  var t = F(var x = smth);

  // =>

  var t = F(smth);
}


// Inspection "Use var" for declaration expressions
{
  d.F(out string t);
  F(string t = "abc");

  // =>

  d.F(out var t);
  F("abc");
}


// Inspection "Move declaration closer to usage"
{
  string t;
  d.F(out t);

  // =>

  d.F(out var t)
}