Confusing "Error: only one index allowed to index [...]"

[Steven Schveighoffer]

On 1/2/19 6:37 PM, Bastiaan Veelo wrote:
> On Wednesday, 2 January 2019 at 22:49:45 UTC, Steven Schveighoffer wrote:
>> What is happening is the compiler is evaluating expressions:
>>
>> a[1] resolves just fine, because of the int[] alias this. But then you 
>> are trying to index the result, which is an int.
> 
> Indeed, this is one of the things I described :-)
> 
>> So no, this error cannot be improved, [...]
> 
> I think yes, because the message is: “Error: only one index allowed to 
> index `int`“ whereas it should be “Error: cannot index type `int`“. Right?

Yes, that error is super-misleading. I should have narrowed my focus of 
my retraction, I take it back that the alias this is a problem.

-Steve