Null-conditional operator on foreach statements

[WhitWaldo]

I'd like to propose some syntax candy. Today, it's not uncommon to remedy the warning that a collection might be null with the following:

if (myCollection?.Count > 0)
{
  foreach(var myEntity in myCollection)
  {
    //Do something
  }
}

Just as the null-conditional operator is usually placed after the variable name and before a period indicating access to a member, I would like to propose the following syntax to have identical behavior to the above and save a few lines:

foreach(var myEntity in myCollection?)
{
  // Do something
}

Just as I might use myEntity?.Property to retrieve the value of Property when myEntity is not null, so too I place the ? to have the compiler insert the count check as a double savings:

1. No need to enumerate the collection if there's nothing in it
2. No need to wrap the enumeration with the length/null check

Thanks for the consideration!

[WhitWaldo]

After a more thorough search, I found #4774 and #1081