Dylan McKay ea7768c2dd Improve 'unknown instrinsic' error message
If you had previously tried to get the ValueRef associated with an
intrinsic that hadn't been described in
`trans::context::declare_intrinsic()`, the compile would panic with
an empty message.

Now we print out details about the error in the panic message.
2015-08-15 21:06:06 +12:00
..
2015-08-13 15:42:14 -04:00
2015-08-12 19:19:31 -04:00
2015-08-11 15:11:13 -07:00