[Grace-core] minor language issues

[James Noble]

> Minigrace does not do this.

well I thought something did at some time;
(I probably didn’t like it then).

>>       we could give up on indexing (which many of you have reached already) which resolves this...
> Or you can use parentheses to pass arbitrary expressions as arguments,
> which seems to be the missing case nobody is talking about...

so that would be 
list.empty
list.with([]) 
list.with([1, 2, 3]) 
list.with([1, 2, 3], [4, 5, 6]) 


hmm.  In many ways, I guess typing “([“ and “])” for list arguments is no worse than other options (e.g. [[ ]]) 

list.empty
list.with [[]]
list.with [[ 1, 2, 3 ]]
list.with([[1, 2, 3 ]], [[ 4, 5, 6 ]]) 


part of me says: [] reserved for indexing, other bracket ops for literals, so they are syntactically distinct. 


I guess we could try to ask questions of corpora like: how many different indexing ops would objects need?
how many different matchfix brackets would dialects need? 

I suppose Smalltalk can tell us how many array literals there are vs calls to at: and at: put: 

James