A future scope guard could need extra parameters. For example, here was a suggestion for...

...identifier, x)` to get the name of parameters passed into a function, trying as best...

...is your dealing with and examine the parameters appropriately to figure it out, and it...

...an exceptionally ugly visual clash with default parameters.  Imagine monstrosities like:

	this(=T t=T...

For parameters yes, I'd prefer that a copy constructor turned into a move constructor...

I know you've proposed @move for parameters already, but this seems inconsistent with that.

...and would lead to awkward questions like "why can't I use `=` on other parameters?"

...doors for other symbols to appear in parameters and have meaning? Are there other features...

...and the ABI (how it is called).

Parameters and return values could be in different...

If you separate the two parameters into two functions:
```
void f0(T)(const(T)[] x...