Add array and record literals to frontend

[zirkel]

Support for these literals exists at the lower levels, but is not in the front end

[Stephen Siegel]

Are you sure? This was ticket 203, which was closed by Yi with message:

"Features added. Front-end supports array and struct type initializations now. "

[zirkel]

You are correct. I was confused because I thought we should be able to do:

int a[] = {1,2,3,4};

This fails. However, it works if I add the extent:

int a[4] = {1,2,3,4};

Sorry for the confusion.